{"items":[{"id":"NVI-00004771","kind":"vulnerability","title":"Grav: Non constant time nonce comparison in Utils::verifyNonce() used for CSRF protection","revision":4,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-38p6-h87p-r4cg","CVE-2026-72701"],"plain_summary":"GitHub lists this reviewed advisory for getgrav/grav. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-839a0cb86ebc7fd1b1eb861759d6d270"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 2.0.16 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-72824f82084f5c05771a187262300816"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-26T14:42:36.000Z","value":"3.7 low","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-fcf5e9ac0a422d7fe9007a56cb11e2a9"},{"kind":"CVSS","as_of":"2026-10-12T15:10:00.207Z","value":"3.7 LOW (3.1)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-999f2f096d9f60165eeba2ec07f59e1e"},{"kind":"CVSS","as_of":"2026-10-12T15:10:00.207Z","value":"6.3 MEDIUM (4.0)","meaning":"disclosure@vulncheck.com severity; no combined Null risk score.","source_id":"sr-999f2f096d9f60165eeba2ec07f59e1e"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.216%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.12082. Missing scores are unknown.","source_id":"sr-839a0cb86ebc7fd1b1eb861759d6d270"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-fcf5e9ac0a422d7fe9007a56cb11e2a9","url":"https://github.com/advisories/GHSA-38p6-h87p-r4cg","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-38p6-h87p-r4cg","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"},{"id":"sr-72824f82084f5c05771a187262300816","url":"https://github.com/advisories/GHSA-38p6-h87p-r4cg","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-38p6-h87p-r4cg","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.653Z"},{"id":"sr-999f2f096d9f60165eeba2ec07f59e1e","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-72701","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-72701","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:49.802Z"},{"id":"sr-839a0cb86ebc7fd1b1eb861759d6d270","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-72701","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.384Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-fcf5e9ac0a422d7fe9007a56cb11e2a9"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n\n`Grav\\Common\\Utils::verifyNonce()`, the core function Grav and its plugins use to validate CSRF nonces, compares the submitted nonce to the expected value with PHP's `===` operator instead of `hash_equals()`. `===` on strings short circuits at the first differing byte, so the comparison time leaks how many leading bytes of a guess are correct. This is CWE-208, Observable Timing Discrepancy.\n\nThe codebase already knows to avoid this pattern. `hash_equals()` is used for the equivalent purpose in four other places I found: `system/src/Grav/Common/Session.php`, `system/src/Grav/Framework/Cache/Adapter/FileCache.php`, `system/src/Grav/Common/Scheduler/Scheduler.php` (the webhook token check), and `system/src/Grav/Common/Scheduler/JobQueue.php`. `Utils::verifyNonce()` is the one place I found that still uses a plain equality check for a secret comparison.\n\n## Affected product and version\n\nProduct: Grav CMS, getgrav/grav\nConfirmed present in: 2.0.15, commit c2b46866857a93a0aa7048e7ed707ed3ed45dbc3\n\n## Affected code\n\n`system/src/Grav/Common/Utils.php`, lines 1512 to 1521:\n```php\npublic static function verifyNonce($nonce, $action)\n{\n    //Safety check for multiple nonces\n    if ","public_affected_ranges":["<= 2.0.15"]},{"certainty":"source_listed","source_ids":["sr-72824f82084f5c05771a187262300816"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n\n`Grav\\Common\\Utils::verifyNonce()`, the core function Grav and its plugins use to validate CSRF nonces, compares the submitted nonce to the expected value with PHP's `===` operator instead of `hash_equals()`. `===` on strings short circuits at the first differing byte, so the comparison time leaks how many leading bytes of a guess are correct. This is CWE-208, Observable Timing Discrepancy.\n\nThe codebase already knows to avoid this pattern. `hash_equals()` is used for the equivalent purpose in four other places I found: `system/src/Grav/Common/Session.php`, `system/src/Grav/Framework/Cache/Adapter/FileCache.php`, `system/src/Grav/Common/Scheduler/Scheduler.php` (the webhook token check), and `system/src/Grav/Common/Scheduler/JobQueue.php`. `Utils::verifyNonce()` is the one place I found that still uses a plain equality check for a secret comparison.\n\n## Affected product and version\n\nProduct: Grav CMS, getgrav/grav\nConfirmed present in: 2.0.15, commit c2b46866857a93a0aa7048e7ed707ed3ed45dbc3\n\n## Affected code\n\n`system/src/Grav/Common/Utils.php`, lines 1512 to 1521:\n```php\npublic static function verifyNonce($nonce, $action)\n{\n    //Safety check for multiple nonces\n    if ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.16"]}],"null_published_at":"2026-11-06T15:18:11.506Z","source_updated_at":"2026-10-26T14:42:36.000Z","source_disclosed_at":"2026-09-17T20:25:05.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:41:49.653Z"},{"id":"NVI-00004771","kind":"vulnerability","title":"Grav: Non constant time nonce comparison in Utils::verifyNonce() used for CSRF protection","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-38p6-h87p-r4cg","CVE-2026-72701"],"plain_summary":"GitHub lists this reviewed advisory for getgrav/grav. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-839a0cb86ebc7fd1b1eb861759d6d270"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 2.0.16 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-72824f82084f5c05771a187262300816"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-26T14:42:36.000Z","value":"3.7 low","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-fcf5e9ac0a422d7fe9007a56cb11e2a9"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.216%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.12082. Missing scores are unknown.","source_id":"sr-839a0cb86ebc7fd1b1eb861759d6d270"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-fcf5e9ac0a422d7fe9007a56cb11e2a9","url":"https://github.com/advisories/GHSA-38p6-h87p-r4cg","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-38p6-h87p-r4cg","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"},{"id":"sr-72824f82084f5c05771a187262300816","url":"https://github.com/advisories/GHSA-38p6-h87p-r4cg","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-38p6-h87p-r4cg","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.653Z"},{"id":"sr-839a0cb86ebc7fd1b1eb861759d6d270","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-72701","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.384Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-fcf5e9ac0a422d7fe9007a56cb11e2a9"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n\n`Grav\\Common\\Utils::verifyNonce()`, the core function Grav and its plugins use to validate CSRF nonces, compares the submitted nonce to the expected value with PHP's `===` operator instead of `hash_equals()`. `===` on strings short circuits at the first differing byte, so the comparison time leaks how many leading bytes of a guess are correct. This is CWE-208, Observable Timing Discrepancy.\n\nThe codebase already knows to avoid this pattern. `hash_equals()` is used for the equivalent purpose in four other places I found: `system/src/Grav/Common/Session.php`, `system/src/Grav/Framework/Cache/Adapter/FileCache.php`, `system/src/Grav/Common/Scheduler/Scheduler.php` (the webhook token check), and `system/src/Grav/Common/Scheduler/JobQueue.php`. `Utils::verifyNonce()` is the one place I found that still uses a plain equality check for a secret comparison.\n\n## Affected product and version\n\nProduct: Grav CMS, getgrav/grav\nConfirmed present in: 2.0.15, commit c2b46866857a93a0aa7048e7ed707ed3ed45dbc3\n\n## Affected code\n\n`system/src/Grav/Common/Utils.php`, lines 1512 to 1521:\n```php\npublic static function verifyNonce($nonce, $action)\n{\n    //Safety check for multiple nonces\n    if ","public_affected_ranges":["<= 2.0.15"]},{"certainty":"source_listed","source_ids":["sr-72824f82084f5c05771a187262300816"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n\n`Grav\\Common\\Utils::verifyNonce()`, the core function Grav and its plugins use to validate CSRF nonces, compares the submitted nonce to the expected value with PHP's `===` operator instead of `hash_equals()`. `===` on strings short circuits at the first differing byte, so the comparison time leaks how many leading bytes of a guess are correct. This is CWE-208, Observable Timing Discrepancy.\n\nThe codebase already knows to avoid this pattern. `hash_equals()` is used for the equivalent purpose in four other places I found: `system/src/Grav/Common/Session.php`, `system/src/Grav/Framework/Cache/Adapter/FileCache.php`, `system/src/Grav/Common/Scheduler/Scheduler.php` (the webhook token check), and `system/src/Grav/Common/Scheduler/JobQueue.php`. `Utils::verifyNonce()` is the one place I found that still uses a plain equality check for a secret comparison.\n\n## Affected product and version\n\nProduct: Grav CMS, getgrav/grav\nConfirmed present in: 2.0.15, commit c2b46866857a93a0aa7048e7ed707ed3ed45dbc3\n\n## Affected code\n\n`system/src/Grav/Common/Utils.php`, lines 1512 to 1521:\n```php\npublic static function verifyNonce($nonce, $action)\n{\n    //Safety check for multiple nonces\n    if ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.16"]}],"null_published_at":"2026-11-03T02:33:09.095Z","source_updated_at":"2026-10-26T14:42:36.000Z","source_disclosed_at":"2026-09-17T20:25:05.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:41:49.653Z"},{"id":"NVI-00004771","kind":"vulnerability","title":"Grav: Non constant time nonce comparison in Utils::verifyNonce() used for CSRF protection","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-38p6-h87p-r4cg","CVE-2026-72701"],"plain_summary":"GitHub lists this reviewed advisory for getgrav/grav. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-fcf5e9ac0a422d7fe9007a56cb11e2a9"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null},{"summary":"The original advisory lists fixed boundaries 2.0.16 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-72824f82084f5c05771a187262300816"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-26T14:42:36.000Z","value":"3.7 low","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-fcf5e9ac0a422d7fe9007a56cb11e2a9"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-fcf5e9ac0a422d7fe9007a56cb11e2a9","url":"https://github.com/advisories/GHSA-38p6-h87p-r4cg","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-38p6-h87p-r4cg","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:06:46.371Z"},{"id":"sr-72824f82084f5c05771a187262300816","url":"https://github.com/advisories/GHSA-38p6-h87p-r4cg","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-38p6-h87p-r4cg","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.653Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-fcf5e9ac0a422d7fe9007a56cb11e2a9"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n\n`Grav\\Common\\Utils::verifyNonce()`, the core function Grav and its plugins use to validate CSRF nonces, compares the submitted nonce to the expected value with PHP's `===` operator instead of `hash_equals()`. `===` on strings short circuits at the first differing byte, so the comparison time leaks how many leading bytes of a guess are correct. This is CWE-208, Observable Timing Discrepancy.\n\nThe codebase already knows to avoid this pattern. `hash_equals()` is used for the equivalent purpose in four other places I found: `system/src/Grav/Common/Session.php`, `system/src/Grav/Framework/Cache/Adapter/FileCache.php`, `system/src/Grav/Common/Scheduler/Scheduler.php` (the webhook token check), and `system/src/Grav/Common/Scheduler/JobQueue.php`. `Utils::verifyNonce()` is the one place I found that still uses a plain equality check for a secret comparison.\n\n## Affected product and version\n\nProduct: Grav CMS, getgrav/grav\nConfirmed present in: 2.0.15, commit c2b46866857a93a0aa7048e7ed707ed3ed45dbc3\n\n## Affected code\n\n`system/src/Grav/Common/Utils.php`, lines 1512 to 1521:\n```php\npublic static function verifyNonce($nonce, $action)\n{\n    //Safety check for multiple nonces\n    if ","public_affected_ranges":["<= 2.0.15"]},{"certainty":"source_listed","source_ids":["sr-72824f82084f5c05771a187262300816"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n\n`Grav\\Common\\Utils::verifyNonce()`, the core function Grav and its plugins use to validate CSRF nonces, compares the submitted nonce to the expected value with PHP's `===` operator instead of `hash_equals()`. `===` on strings short circuits at the first differing byte, so the comparison time leaks how many leading bytes of a guess are correct. This is CWE-208, Observable Timing Discrepancy.\n\nThe codebase already knows to avoid this pattern. `hash_equals()` is used for the equivalent purpose in four other places I found: `system/src/Grav/Common/Session.php`, `system/src/Grav/Framework/Cache/Adapter/FileCache.php`, `system/src/Grav/Common/Scheduler/Scheduler.php` (the webhook token check), and `system/src/Grav/Common/Scheduler/JobQueue.php`. `Utils::verifyNonce()` is the one place I found that still uses a plain equality check for a secret comparison.\n\n## Affected product and version\n\nProduct: Grav CMS, getgrav/grav\nConfirmed present in: 2.0.15, commit c2b46866857a93a0aa7048e7ed707ed3ed45dbc3\n\n## Affected code\n\n`system/src/Grav/Common/Utils.php`, lines 1512 to 1521:\n```php\npublic static function verifyNonce($nonce, $action)\n{\n    //Safety check for multiple nonces\n    if ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.16"]}],"null_published_at":"2026-10-31T22:27:12.382Z","source_updated_at":"2026-10-26T14:42:36.000Z","source_disclosed_at":"2026-09-17T20:25:05.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:41:49.653Z"},{"id":"NVI-00004771","kind":"vulnerability","title":"Grav: Non constant time nonce comparison in Utils::verifyNonce() used for CSRF protection","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-38p6-h87p-r4cg","CVE-2026-72701"],"plain_summary":"OSV carries this publisher advisory for getgrav/grav. This is an aggregated source copy; consult the original publisher and compare update dates.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"The original advisory lists fixed boundaries 2.0.16 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-72824f82084f5c05771a187262300816"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-72824f82084f5c05771a187262300816","url":"https://github.com/advisories/GHSA-38p6-h87p-r4cg","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-38p6-h87p-r4cg","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:41:49.653Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-72824f82084f5c05771a187262300816"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n\n`Grav\\Common\\Utils::verifyNonce()`, the core function Grav and its plugins use to validate CSRF nonces, compares the submitted nonce to the expected value with PHP's `===` operator instead of `hash_equals()`. `===` on strings short circuits at the first differing byte, so the comparison time leaks how many leading bytes of a guess are correct. This is CWE-208, Observable Timing Discrepancy.\n\nThe codebase already knows to avoid this pattern. `hash_equals()` is used for the equivalent purpose in four other places I found: `system/src/Grav/Common/Session.php`, `system/src/Grav/Framework/Cache/Adapter/FileCache.php`, `system/src/Grav/Common/Scheduler/Scheduler.php` (the webhook token check), and `system/src/Grav/Common/Scheduler/JobQueue.php`. `Utils::verifyNonce()` is the one place I found that still uses a plain equality check for a secret comparison.\n\n## Affected product and version\n\nProduct: Grav CMS, getgrav/grav\nConfirmed present in: 2.0.15, commit c2b46866857a93a0aa7048e7ed707ed3ed45dbc3\n\n## Affected code\n\n`system/src/Grav/Common/Utils.php`, lines 1512 to 1521:\n```php\npublic static function verifyNonce($nonce, $action)\n{\n    //Safety check for multiple nonces\n    if ","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.16"]}],"null_published_at":"2026-10-31T22:12:57.142Z","source_updated_at":"2026-10-26T15:00:05.323Z","source_disclosed_at":"2026-09-17T20:25:05.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:41:49.653Z"}],"next_cursor":null,"snapshot_revision":"42594"}