Session Fixation Vulnerability in YesWiki by YesWiki Team
CVE-2026-104469

7.6HIGH

Key Information:

Vendor

Yeswiki

Status
Yeswiki
Vendor
CVE Published:
2 October 2026

What is CVE-2026-104469?

YesWiki versions prior to 4.6.7 are susceptible to a session fixation vulnerability that enables attackers to hijack user sessions. The vulnerability occurs because the application fails to regenerate the PHP session ID upon user login. As a result, an attacker can set or intercept a victim's pre-authentication YesWiki session cookie, allowing unauthorized access to private content and privileged actions by exploiting the victim's authenticated session. This vulnerability highlights the importance of secure session management practices to safeguard user data.

Affected Version(s)

yeswiki 0 < 4.6.7

yeswiki 4.6.7

References

https://github.com/YesWiki/yeswiki/security/advisories/GH...
vendor-advisory
https://www.vulncheck.com/advisories/yeswiki-before-4.6.7...
third-party-advisory

CVSS V4

Score:
7.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.