{"id":"CVE-2026-67351","title":"Serendipity before 2.6.1 contains an authentication context confusion vulnerability where password validation and session loading operate independently without ensuring both use the same user record","summary":"Serendipity before 2.6.1 contains an authentication context confusion vulnerability where password validation and session loading operate independently without ensuring both use the same user record. An authenticated Editor can create a …","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-304"],"published":"2026-07-30","updated":"2026-07-31","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-67351","references":[{"url":"https://github.com/s9y/Serendipity/security/advisories/GHSA-v645-243f-jwgh","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/serendipity-authentication-bypass-via-username-collision","label":"disclosure@vulncheck.com"},{"url":"https://github.com/s9y/Serendipity/security/advisories/GHSA-v645-243f-jwgh","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.0037,"epssPercentile":0.30891,"ingestedAt":"2026-08-01T22:15:46.029Z","slug":"CVE-2026-67351","body":"## Overview\n\nSerendipity before 2.6.1 contains an authentication context confusion vulnerability where password validation and session loading operate independently without ensuring both use the same user record. An authenticated Editor can create a username collision with an Administrator account and obtain administrative privileges by logging in with their own password while the session loads the Administrator's account data.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}