Vulnerability in Yeswiki
CVE-2026-104469
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/YesWiki/yeswiki/security/advisories/GHSA-7fvc-v2hp-5pwh (vendor-advisory)
- www.vulncheck.com/advisories/yeswiki-before-4.6.7-session-fixation-via-login-in… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-104469?
- CVE-2026-104469 is a medium-severity vulnerability in Yeswiki, classified under Session Fixation. CVSS score: 6.8/10. Published 2026-10-02.
- How severe is CVE-2026-104469?
- Medium severity. CVSS v3 base score is 6.8 out of 10.