{"id":"CVE-2026-120007","published":"2026-10-30T19:18:22.770","lastModified":"2026-10-30T20:17:09.377","description":"NodeBB 1.18.0 through 4.16.5 contains an authorization bypass vulnerability that allows unauthenticated visitors to act on other accounts by supplying a uid during POST /register. Attackers can submit an empty email at the /register/complete interstitial to clear a victim's email and confirmation state and revoke all their sessions.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","cwes":["CWE-639"],"vendors":[],"products":[],"references":[{"url":"https://github.com/NodeBB/NodeBB","tags":[]},{"url":"https://github.com/NodeBB/NodeBB/blob/c3d8dc512292a376f19e06cb93512bdff2505102/src/controllers/authentication.js#L34","tags":[]},{"url":"https://github.com/NodeBB/NodeBB/blob/c3d8dc512292a376f19e06cb93512bdff2505102/src/user/interstitials.js#L124","tags":[]},{"url":"https://github.com/NodeBB/NodeBB/commit/376d14abb7fffd8ea14f3a2f96baa20ffee5cdb3","tags":[]},{"url":"https://www.vulncheck.com/advisories/nodebb-1.18.0-through-4.16.5-authorization-bypass-via-register-complete-uid","tags":[]}],"exploitRefs":[{"url":"https://github.com/NodeBB/NodeBB","tags":[]},{"url":"https://github.com/NodeBB/NodeBB/blob/c3d8dc512292a376f19e06cb93512bdff2505102/src/controllers/authentication.js#L34","tags":[]},{"url":"https://github.com/NodeBB/NodeBB/blob/c3d8dc512292a376f19e06cb93512bdff2505102/src/user/interstitials.js#L124","tags":[]},{"url":"https://github.com/NodeBB/NodeBB/commit/376d14abb7fffd8ea14f3a2f96baa20ffee5cdb3","tags":[]}],"hasPoc":true,"ai":null}