Vulnerability · Published Oct 2, 2026 · Assigned by VulnCheck
CVE-2026-104469YesWiki before 4.6.7 Session Fixation via Login in AuthController.php
Medium 6.8
In plain English
A medium-severity session fixation in yeswiki from YesWiki. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).
Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.3%top 77.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
YesWiki before 4.6.7 contains a session fixation vulnerability that allows attackers to hijack authenticated sessions because login does not regenerate the PHP session ID. Attackers who set or learn a victim's pre-authentication YesWiki-* session cookie can reuse it after login to access private content and perform actions with the victim's privileges.
Affected products (as reported)
Weakness: CWE-384 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
References
- GitHub Security Advisory (GHSA-7fvc-v2hp-5pwh) vendor-advisory
- VulnCheck Advisory: YesWiki before 4.6.7 Session Fixation via Login in AuthController.php third-party-advisory