{"schema":"threatline.record/2","record":{"id":"CVE-2026-84302","aliases":["GHSA-3rx9-fqgh-wfpc"],"summary":"Discourse: Non-participant moderators can read, edit, and delete PM content through Discourse AI reviewables","details":"Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, Discourse AI reviewables associated with private messages could appear in the moderator review queue of a moderator who was not a participant in the message. Reviewable visibility filtering did not restrict private-message reviewables to the audience permitted to access the underlying private-message topic, allowing the moderator to read otherwise confidential content. Depending on the available reviewable action, the moderator could also modify the private message by closing its topic or deleting a post. Exploitation requires an authenticated moderator account and a pre-existing Discourse AI reviewable associated with a private message. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.","categories":["Applications & CMS"],"product":"discourse","vendor":"discourse","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-84302","source_modified_at":"2026-09-24T17:04:51.257Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"discourse","vendor":"discourse","versions":[{"version":"< 2026.7.0","status":"affected"},{"version":">= 2026.6.0-latest, < 2026.6.1","status":"affected"},{"version":">= 2026.5.0-latest, < 2026.5.2","status":"affected"},{"version":">= 2026.1.0-latest, < 2026.1.6","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":4.2,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00238,"percentile":0.14003,"score_date":"2026-10-23"},"published_at":"2026-09-24T16:49:56.499Z","modified_at":"2026-09-24T17:04:51.257Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-84302","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-24T17:04:51.257Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-84302","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/discourse/discourse/security/advisories/GHSA-3rx9-fqgh-wfpc","tags":["x_refsource_CONFIRM"]},{"source":"CVE List","url":"https://github.com/discourse/discourse/pull/42091","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/discourse/discourse/commit/1566d04524c01472375944bbf7b198dd09a99427","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/discourse/discourse/commit/23488b72a200228e805c4e6d970fbad216d328c5","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/discourse/discourse/commit/38d10c0e5d1b76540d2860455e0290f8e975c9fd","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/discourse/discourse/commit/b323702d87cd82c327c116d9566477f3c4f9635f","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-24T17:04:31.550424Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-09-24T17:04:51.257Z","content_hash":"596722878c0c40e892e5d98c9cbb650d471f12a623465a544c4ca92dcd9a2260"}}