Cross-Site Request Forgery Vulnerability in YesWiki by YesWiki
CVE-2026-104453

5.3MEDIUM

Key Information:

Vendor

Yeswiki

Status
Yeswiki
Vendor
CVE Published:
2 October 2026

What is CVE-2026-104453?

YesWiki versions prior to 4.6.7 are susceptible to a cross-site request forgery (CSRF) vulnerability affecting the admintag action. Attackers can exploit this flaw by crafting specific GET links that trick administrators into performing unwanted tag deletion. By supplying a wide range of IDs in the delete_tag parameter while retaining the SameSite=Lax admin cookie, malicious actors can execute bulk deletions of tag associations, compromising the integrity of the site's tagging system.

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:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

manus-use
.