Auth bypass in Yeswiki
CVE-2026-104444
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.
Vulnerability class: IDOR (Insecure Direct Object Reference)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.
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-894w-63wr-8x5r (vendor-advisory)
- www.vulncheck.com/advisories/yeswiki-before-4.6.7-authorization-bypass-via-comm… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-104444?
- CVE-2026-104444 is a high-severity vulnerability in Yeswiki, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.1/10. Published 2026-10-02.
- How severe is CVE-2026-104444?
- High severity. CVSS v3 base score is 7.1 out of 10.