What is GHSA-c9hw-c2mv-jj5c?

GHSA-c9hw-c2mv-jj5c is a security advisory published by GitHub Security Advisories with High severity. YesWiki before 4.6.7 contains a session fixation vulnerability that allows attackers to hijack...

Which CVE IDs does GHSA-c9hw-c2mv-jj5c cover?

GHSA-c9hw-c2mv-jj5c covers the following CVE IDs: CVE-2026-104469. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-c9hw-c2mv-jj5c?

GHSA-c9hw-c2mv-jj5c has a CVSS v3 base score of 6.8, published by GitHub Security Advisories.

GHSA-c9hw-c2mv-jj5cHighCVSS 6.8

YesWiki before 4.6.7 contains a session fixation vulnerability that allows attackers to hijack...

Vendor

GitHub Security Advisories

Published

October 2, 2026

Last Modified

October 2, 2026

🔗 CVE IDs covered (1)

CVE-2026-104469 →

📋 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.

🔗 References (4)

https://github.com/YesWiki/yeswiki/security/advisories/GHSA-7fvc-v2hp-5pwh
https://nvd.nist.gov/vuln/detail/CVE-2026-104469
https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-session-fixation-via-login-in-authcontroller-php
https://github.com/advisories/GHSA-c9hw-c2mv-jj5c