{"items":[{"id":"NVI-00002988","kind":"vulnerability","title":"Grav: Stored CSS injection via Markdown image ?style=… reaches MediaObjectTrait::style() — incomplete patch of GHSA-r7fx-8g49-7hhr","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-pmf8-g7c8-7v54","CVE-2026-55890"],"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-23f16fc0101e6174e371823c84ed5f73"],"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 2.0.0-rc.9 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-2e1e53e978843aaec0d134482481700a"],"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":"2026-06-18T14:49:20.000Z","value":"4.8 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-25704caba132caeaf5b49dc4c7d12ced"},{"kind":"CVSS","as_of":"2026-10-25T15:10:00.147Z","value":"4.8 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-65b83c2dcfb4d6045fd22ba334a1db7e"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.503%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.43048. Missing scores are unknown.","source_id":"sr-23f16fc0101e6174e371823c84ed5f73"}],"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-25704caba132caeaf5b49dc4c7d12ced","url":"https://github.com/advisories/GHSA-pmf8-g7c8-7v54","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-pmf8-g7c8-7v54","publisher":"GitHub Advisory Database","observed_at":"2026-11-06T07:20:10.578Z"},{"id":"sr-2e1e53e978843aaec0d134482481700a","url":"https://github.com/advisories/GHSA-pmf8-g7c8-7v54","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-pmf8-g7c8-7v54","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.992Z"},{"id":"sr-65b83c2dcfb4d6045fd22ba334a1db7e","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55890","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-55890","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:39.943Z"},{"id":"sr-23f16fc0101e6174e371823c84ed5f73","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-2026-55890","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.283Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-25704caba132caeaf5b49dc4c7d12ced"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n\nThe fix for **GHSA-r7fx-8g49-7hhr / CVE-2026-42841** (Stored XSS via Markdown media `attribute()` action) is incomplete. The maintainer patched `MediaObjectTrait::attribute()` to deny dangerous attribute names (event handlers, `style`, `xmlns`, `srcdoc`, `formaction`) but the sibling `MediaObjectTrait::style()` method is reachable through the **same Markdown excerpt-action pipeline** and writes editor-controlled strings straight into the rendered `` attribute with **no sanitization**.\n\nAny user with `admin.pages` permission (e.g. an editor) can save Markdown like:\n\n```markdown\n!logo\n```\n\nwhich renders to a stored-CSS payload that any higher-privileged viewer (administrator, super-admin, reviewer) loads in their authenticated session. Same trust boundary, same victim, same attacker, same Markdown input vector as the patched GHSA-r7fx-8g49-7hhr issue — the fix simply patched the `attribute()` entry point and missed the `style()` sibling.\n\n## Affected versions\n\nVulnerable at HEAD across every currently-shipping branch (verified 2026-06-15):\n\n| Branch / tag |","public_affected_ranges":["<= 2.0.0-rc.8"]},{"certainty":"source_listed","source_ids":["sr-2e1e53e978843aaec0d134482481700a"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n\nThe fix for **GHSA-r7fx-8g49-7hhr / CVE-2026-42841** (Stored XSS via Markdown media `attribute()` action) is incomplete. The maintainer patched `MediaObjectTrait::attribute()` to deny dangerous attribute names (event handlers, `style`, `xmlns`, `srcdoc`, `formaction`) but the sibling `MediaObjectTrait::style()` method is reachable through the **same Markdown excerpt-action pipeline** and writes editor-controlled strings straight into the rendered `` attribute with **no sanitization**.\n\nAny user with `admin.pages` permission (e.g. an editor) can save Markdown like:\n\n```markdown\n!logo\n```\n\nwhich renders to a stored-CSS payload that any higher-privileged viewer (administrator, super-admin, reviewer) loads in their authenticated session. Same trust boundary, same victim, same attacker, same Markdown input vector as the patched GHSA-r7fx-8g49-7hhr issue — the fix simply patched the `attribute()` entry point and missed the `style()` sibling.\n\n## Affected versions\n\nVulnerable at HEAD across every currently-shipping branch (verified 2026-06-15):\n\n| Branch / tag |","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.0-rc.9"]}],"null_published_at":"2026-11-07T07:07:39.837Z","source_updated_at":"2026-06-18T14:49:20.000Z","source_disclosed_at":"2026-06-18T14:49:19.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:30.992Z"},{"id":"NVI-00002988","kind":"vulnerability","title":"Grav: Stored CSS injection via Markdown image ?style=… reaches MediaObjectTrait::style() — incomplete patch of GHSA-r7fx-8g49-7hhr","revision":3,"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-pmf8-g7c8-7v54","CVE-2026-55890"],"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 2.0.0-rc.9 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-2e1e53e978843aaec0d134482481700a"],"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},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-23f16fc0101e6174e371823c84ed5f73"],"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}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-25T15:10:00.147Z","value":"4.8 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-65b83c2dcfb4d6045fd22ba334a1db7e"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.503%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.43048. Missing scores are unknown.","source_id":"sr-23f16fc0101e6174e371823c84ed5f73"}],"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-2e1e53e978843aaec0d134482481700a","url":"https://github.com/advisories/GHSA-pmf8-g7c8-7v54","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-pmf8-g7c8-7v54","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.992Z"},{"id":"sr-65b83c2dcfb4d6045fd22ba334a1db7e","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55890","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-55890","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:39.943Z"},{"id":"sr-23f16fc0101e6174e371823c84ed5f73","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-2026-55890","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.283Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2e1e53e978843aaec0d134482481700a"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n\nThe fix for **GHSA-r7fx-8g49-7hhr / CVE-2026-42841** (Stored XSS via Markdown media `attribute()` action) is incomplete. The maintainer patched `MediaObjectTrait::attribute()` to deny dangerous attribute names (event handlers, `style`, `xmlns`, `srcdoc`, `formaction`) but the sibling `MediaObjectTrait::style()` method is reachable through the **same Markdown excerpt-action pipeline** and writes editor-controlled strings straight into the rendered `` attribute with **no sanitization**.\n\nAny user with `admin.pages` permission (e.g. an editor) can save Markdown like:\n\n```markdown\n!logo\n```\n\nwhich renders to a stored-CSS payload that any higher-privileged viewer (administrator, super-admin, reviewer) loads in their authenticated session. Same trust boundary, same victim, same attacker, same Markdown input vector as the patched GHSA-r7fx-8g49-7hhr issue — the fix simply patched the `attribute()` entry point and missed the `style()` sibling.\n\n## Affected versions\n\nVulnerable at HEAD across every currently-shipping branch (verified 2026-06-15):\n\n| Branch / tag |","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.0-rc.9"]}],"null_published_at":"2026-11-04T18:04:03.184Z","source_updated_at":"2026-09-10T03:51:09.269Z","source_disclosed_at":"2026-06-18T14:49:19.000Z","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":"2026-10-31T21:42:30.992Z"},{"id":"NVI-00002988","kind":"vulnerability","title":"Grav: Stored CSS injection via Markdown image ?style=… reaches MediaObjectTrait::style() — incomplete patch of GHSA-r7fx-8g49-7hhr","revision":2,"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-pmf8-g7c8-7v54","CVE-2026-55890"],"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 2.0.0-rc.9 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-2e1e53e978843aaec0d134482481700a"],"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},{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-65b83c2dcfb4d6045fd22ba334a1db7e"],"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}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-25T15:10:00.147Z","value":"4.8 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-65b83c2dcfb4d6045fd22ba334a1db7e"}],"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-2e1e53e978843aaec0d134482481700a","url":"https://github.com/advisories/GHSA-pmf8-g7c8-7v54","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-pmf8-g7c8-7v54","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.992Z"},{"id":"sr-65b83c2dcfb4d6045fd22ba334a1db7e","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55890","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-55890","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-01T07:24:39.943Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2e1e53e978843aaec0d134482481700a"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n\nThe fix for **GHSA-r7fx-8g49-7hhr / CVE-2026-42841** (Stored XSS via Markdown media `attribute()` action) is incomplete. The maintainer patched `MediaObjectTrait::attribute()` to deny dangerous attribute names (event handlers, `style`, `xmlns`, `srcdoc`, `formaction`) but the sibling `MediaObjectTrait::style()` method is reachable through the **same Markdown excerpt-action pipeline** and writes editor-controlled strings straight into the rendered `` attribute with **no sanitization**.\n\nAny user with `admin.pages` permission (e.g. an editor) can save Markdown like:\n\n```markdown\n!logo\n```\n\nwhich renders to a stored-CSS payload that any higher-privileged viewer (administrator, super-admin, reviewer) loads in their authenticated session. Same trust boundary, same victim, same attacker, same Markdown input vector as the patched GHSA-r7fx-8g49-7hhr issue — the fix simply patched the `attribute()` entry point and missed the `style()` sibling.\n\n## Affected versions\n\nVulnerable at HEAD across every currently-shipping branch (verified 2026-06-15):\n\n| Branch / tag |","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.0-rc.9"]}],"null_published_at":"2026-11-02T20:21:10.302Z","source_updated_at":"2026-09-10T03:51:09.269Z","source_disclosed_at":"2026-06-18T14:49:19.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:42:30.992Z"},{"id":"NVI-00002988","kind":"vulnerability","title":"Grav: Stored CSS injection via Markdown image ?style=… reaches MediaObjectTrait::style() — incomplete patch of GHSA-r7fx-8g49-7hhr","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-pmf8-g7c8-7v54","CVE-2026-55890"],"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 2.0.0-rc.9 for getgrav/grav. Confirm the publisher’s latest guidance.","source_ids":["sr-2e1e53e978843aaec0d134482481700a"],"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-2e1e53e978843aaec0d134482481700a","url":"https://github.com/advisories/GHSA-pmf8-g7c8-7v54","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-pmf8-g7c8-7v54","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:30.992Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2e1e53e978843aaec0d134482481700a"],"technology":"getgrav/grav","known_exclusions":[],"conditions_summary":"## Summary\n\nThe fix for **GHSA-r7fx-8g49-7hhr / CVE-2026-42841** (Stored XSS via Markdown media `attribute()` action) is incomplete. The maintainer patched `MediaObjectTrait::attribute()` to deny dangerous attribute names (event handlers, `style`, `xmlns`, `srcdoc`, `formaction`) but the sibling `MediaObjectTrait::style()` method is reachable through the **same Markdown excerpt-action pipeline** and writes editor-controlled strings straight into the rendered `` attribute with **no sanitization**.\n\nAny user with `admin.pages` permission (e.g. an editor) can save Markdown like:\n\n```markdown\n!logo\n```\n\nwhich renders to a stored-CSS payload that any higher-privileged viewer (administrator, super-admin, reviewer) loads in their authenticated session. Same trust boundary, same victim, same attacker, same Markdown input vector as the patched GHSA-r7fx-8g49-7hhr issue — the fix simply patched the `attribute()` entry point and missed the `style()` sibling.\n\n## Affected versions\n\nVulnerable at HEAD across every currently-shipping branch (verified 2026-06-15):\n\n| Branch / tag |","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.0.0-rc.9"]}],"null_published_at":"2026-10-31T22:12:38.466Z","source_updated_at":"2026-09-10T03:51:09.269Z","source_disclosed_at":"2026-06-18T14:49:19.000Z","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":"2026-10-31T21:42:30.992Z"}],"next_cursor":null,"snapshot_revision":"42594"}