{"items":[{"id":"NVI-00004143","kind":"vulnerability","title":"Craft CMS Vulnerable to potential authenticated Remote Code Execution via malicious attached Behavior","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-7jx7-3846-m7w7","CVE-2026-25498"],"plain_summary":"OSV carries this publisher advisory for craftcms/cms, craftcms/cms. 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 5.8.22 for craftcms/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-59b14738888363a192ba466b9ddae368"],"action_type":"vendor_patch","limitations":"Confirm current vendor support, compatibility and deployment evidence. 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That advisory addressed a similar RCE vulnerability that affected two specific routes:\n\n- `/index.php?p=admin%2Factions%2Ffields%2Fapply-layout-element-settings`\n- `/index.php?p=admin%2Factions%2Ffields%2Frender-card-preview`\n\nThis one addresses some additional endpoints that were not covered in the https://github.com/craftcms/cms/security/advisories/GHSA-255j-qw47-wjh5.\n\nThe patched vulnerability used a malicious `AttributeTypecastBehavior` with a wildcard event listener (`\"on *\": \"self::beforeSave\"`) and `__construct()` syntax to trigger RCE via the `typecastBeforeSave` callback. 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That advisory addressed a similar RCE vulnerability that affected two specific routes:\n\n- `/index.php?p=admin%2Factions%2Ffields%2Fapply-layout-element-settings`\n- `/index.php?p=admin%2Factions%2Ffields%2Frender-card-preview`\n\nThis one addresses some additional endpoints that were not covered in the https://github.com/craftcms/cms/security/advisories/GHSA-255j-qw47-wjh5.\n\nThe patched vulnerability used a malicious `AttributeTypecastBehavior` with a wildcard event listener (`\"on *\": \"self::beforeSave\"`) and `__construct()` syntax to trigger RCE via the `typecastBeforeSave` callback. 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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 5.8.22 for craftcms/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-59b14738888363a192ba466b9ddae368"],"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":"The original advisory lists fixed boundaries 4.16.18 for craftcms/cms. Confirm the publisher’s latest guidance.","source_ids":["sr-59b14738888363a192ba466b9ddae368"],"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-2a3c9c455e69e904adaa5362c8066294"],"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":"1.116%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.6609. Missing scores are unknown.","source_id":"sr-2a3c9c455e69e904adaa5362c8066294"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. 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Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-25498","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.376Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-59b14738888363a192ba466b9ddae368"],"technology":"craftcms/cms","known_exclusions":[],"conditions_summary":"## Relationship to Previously Patched Vulnerability\n\nThis vulnerability is **in addition to** the RCE vulnerability patched in GHSA-255j-qw47-wjh5. That advisory addressed a similar RCE vulnerability that affected two specific routes:\n\n- `/index.php?p=admin%2Factions%2Ffields%2Fapply-layout-element-settings`\n- `/index.php?p=admin%2Factions%2Ffields%2Frender-card-preview`\n\nThis one addresses some additional endpoints that were not covered in the https://github.com/craftcms/cms/security/advisories/GHSA-255j-qw47-wjh5.\n\nThe patched vulnerability used a malicious `AttributeTypecastBehavior` with a wildcard event listener (`\"on *\": \"self::beforeSave\"`) and `__construct()` syntax to trigger RCE via the `typecastBeforeSave` callback. 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That advisory addressed a similar RCE vulnerability that affected two specific routes:\n\n- `/index.php?p=admin%2Factions%2Ffields%2Fapply-layout-element-settings`\n- `/index.php?p=admin%2Factions%2Ffields%2Frender-card-preview`\n\nThis one addresses some additional endpoints that were not covered in the https://github.com/craftcms/cms/security/advisories/GHSA-255j-qw47-wjh5.\n\nThe patched vulnerability used a malicious `AttributeTypecastBehavior` with a wildcard event listener (`\"on *\": \"self::beforeSave\"`) and `__construct()` syntax to trigger RCE via the `typecastBeforeSave` callback. 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That advisory addressed a similar RCE vulnerability that affected two specific routes:\n\n- `/index.php?p=admin%2Factions%2Ffields%2Fapply-layout-element-settings`\n- `/index.php?p=admin%2Factions%2Ffields%2Frender-card-preview`\n\nThis one addresses some additional endpoints that were not covered in the https://github.com/craftcms/cms/security/advisories/GHSA-255j-qw47-wjh5.\n\nThe patched vulnerability used a malicious `AttributeTypecastBehavior` with a wildcard event listener (`\"on *\": \"self::beforeSave\"`) and `__construct()` syntax to trigger RCE via the `typecastBeforeSave` callback. 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The fix was implemented in commits:\n- 6e608a1\n- 27f5588\n- ec43c49\n\nThis vulnerability follows the same attack pattern (behavior injection v","public_affected_ranges":["ECOSYSTEM: introduced 4.0.0-RC1; fixed 4.16.18"]}],"null_published_at":"2026-10-31T22:12:52.630Z","source_updated_at":"2026-04-02T13:29:24.688Z","source_disclosed_at":"2026-02-09T20:36:43.000Z","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":"2026-10-31T21:41:59.951Z"}],"next_cursor":null,"snapshot_revision":"42594"}