{"items":[{"id":"NVI-00002765","kind":"vulnerability","title":"yiisoft/yii2-authclient's Oauth2 PKCE implementation is vulnerable","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-rw54-6826-c8j5","CVE-2023-50714"],"plain_summary":"OSV carries this publisher advisory for yiisoft/yii2-authclient. 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 2.2.15 for yiisoft/yii2-authclient. Confirm the publisher’s latest guidance.","source_ids":["sr-2616b4a8762dfc5fd285c7edf1bb9235"],"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-2459450581680f2c4650fa3ee11d9ce6"],"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":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.492%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.42256. Missing scores are unknown.","source_id":"sr-2459450581680f2c4650fa3ee11d9ce6"}],"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-2616b4a8762dfc5fd285c7edf1bb9235","url":"https://github.com/advisories/GHSA-rw54-6826-c8j5","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-rw54-6826-c8j5","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.367Z"},{"id":"sr-2459450581680f2c4650fa3ee11d9ce6","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-2023-50714","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:27:48.610Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2616b4a8762dfc5fd285c7edf1bb9235"],"technology":"yiisoft/yii2-authclient","known_exclusions":[],"conditions_summary":"### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\nOriginal Report:\n\n> The Oauth2 PKCE implementation is vulnerable in 2 ways:\n> 1. The `authCodeVerifier` should be removed after usage (similar to 'authState')\n> 2. There is a risk for a \"downgrade attack\" if PKCE is being relied on for CSRF protection.\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\n2.2.15\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nnot known yet.\n\n### References\n_Are there any links users can visit to find out more?_\n","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.2.15"]}],"null_published_at":"2026-11-04T18:04:03.187Z","source_updated_at":"2026-09-10T03:50:09.131Z","source_disclosed_at":"2023-12-18T19:34:20.000Z","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":"2026-10-31T21:42:41.367Z"},{"id":"NVI-00002765","kind":"vulnerability","title":"yiisoft/yii2-authclient's Oauth2 PKCE implementation is vulnerable","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-rw54-6826-c8j5","CVE-2023-50714"],"plain_summary":"OSV carries this publisher advisory for yiisoft/yii2-authclient. 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 2.2.15 for yiisoft/yii2-authclient. Confirm the publisher’s latest guidance.","source_ids":["sr-2616b4a8762dfc5fd285c7edf1bb9235"],"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-810205c668a8f27b97a05732d1c98efb"],"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":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.492%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.42265. Missing scores are unknown.","source_id":"sr-810205c668a8f27b97a05732d1c98efb"}],"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-2616b4a8762dfc5fd285c7edf1bb9235","url":"https://github.com/advisories/GHSA-rw54-6826-c8j5","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-rw54-6826-c8j5","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.367Z"},{"id":"sr-810205c668a8f27b97a05732d1c98efb","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-2023-50714","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:03.704Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2616b4a8762dfc5fd285c7edf1bb9235"],"technology":"yiisoft/yii2-authclient","known_exclusions":[],"conditions_summary":"### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\nOriginal Report:\n\n> The Oauth2 PKCE implementation is vulnerable in 2 ways:\n> 1. The `authCodeVerifier` should be removed after usage (similar to 'authState')\n> 2. There is a risk for a \"downgrade attack\" if PKCE is being relied on for CSRF protection.\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\n2.2.15\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nnot known yet.\n\n### References\n_Are there any links users can visit to find out more?_\n","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.2.15"]}],"null_published_at":"2026-11-03T02:33:09.081Z","source_updated_at":"2026-09-10T03:50:09.131Z","source_disclosed_at":"2023-12-18T19:34:20.000Z","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":"2026-10-31T21:42:41.367Z"},{"id":"NVI-00002765","kind":"vulnerability","title":"yiisoft/yii2-authclient's Oauth2 PKCE implementation is vulnerable","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-rw54-6826-c8j5","CVE-2023-50714"],"plain_summary":"OSV carries this publisher advisory for yiisoft/yii2-authclient. 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 2.2.15 for yiisoft/yii2-authclient. Confirm the publisher’s latest guidance.","source_ids":["sr-2616b4a8762dfc5fd285c7edf1bb9235"],"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-2616b4a8762dfc5fd285c7edf1bb9235","url":"https://github.com/advisories/GHSA-rw54-6826-c8j5","basis":"vendor_advisory","notes":"GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.","title":"GHSA-rw54-6826-c8j5","publisher":"GitHub Advisory Database via OSV","observed_at":"2026-10-31T21:42:41.367Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2616b4a8762dfc5fd285c7edf1bb9235"],"technology":"yiisoft/yii2-authclient","known_exclusions":[],"conditions_summary":"### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\nOriginal Report:\n\n> The Oauth2 PKCE implementation is vulnerable in 2 ways:\n> 1. The `authCodeVerifier` should be removed after usage (similar to 'authState')\n> 2. There is a risk for a \"downgrade attack\" if PKCE is being relied on for CSRF protection.\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\n2.2.15\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nnot known yet.\n\n### References\n_Are there any links users can visit to find out more?_\n","public_affected_ranges":["ECOSYSTEM: introduced 0; fixed 2.2.15"]}],"null_published_at":"2026-10-31T22:00:33.903Z","source_updated_at":"2026-09-10T03:50:09.131Z","source_disclosed_at":"2023-12-18T19:34:20.000Z","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":"2026-10-31T21:42:41.367Z"}],"next_cursor":null,"snapshot_revision":"42594"}