High severity · published Oct 2, 2026
CVE-2026-104444
YesWiki before 4.6.7 Authorization Bypass via Comments API editComment
7.1
CVSS
0.3%
EPSS
No
On KEV
Description
YesWiki before 4.6.7 contains an authorization bypass vulnerability in the comments API editComment route that allows authenticated low-privilege users to overwrite arbitrary pages or comments by supplying their own page as the pagetag field. Attackers can send a POST request to the api/comments endpoint targeting a victim tag, bypassing per-page write ACLs to replace content and reparent existing pages or comments.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
High
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 20% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
YE
yeswiki · YesWiki
before 4.6.7 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-104444
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-104444
vendor-advisory
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-894w-63wr-8x5r
third-party-advisory
https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-authorization-bypass-via-comments-api-editcomment
More from yeswiki
9.8
CVE-2026-46670
YesWiki: Unauthenticated SQL Injection
9.8
CVE-2026-52778
YesWiki has Unsafe eval() in Formula Calculator - Remote Code Execution (RCE) & Denial of Service (DoS)
9.8
CVE-2025-46348
YesWiki is a wiki system written in PHP
9.8
CVE-2025-46347
YesWiki is a wiki system written in PHP
9.8
CVE-2018-1000641
YesWiki version <= cercopitheque beta 1 contains a PHP Object Injection vulnerability in Unserialising user entered parameter in i18n.inc.php that can result in execution of code,…