Auth bypass in Yeswiki
CVE-2026-104472
YesWiki before 4.6.7 contains a missing authorization vulnerability in the attachment download handler that allows unauthenticated attackers to bypass page read ACLs. Attackers can request the download handler with a known page tag and file parameter to retrieve confidential attachments from read-restricted pages.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
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-7cj2-9pgf-vcw2 (vendor-advisory)
- www.vulncheck.com/advisories/yeswiki-before-4.6.7-missing-authorization-via-att… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-104472?
- CVE-2026-104472 is a high-severity vulnerability in Yeswiki, classified under Missing Authorization. CVSS score: 7.5/10. Published 2026-10-02.
- How severe is CVE-2026-104472?
- High severity. CVSS v3 base score is 7.5 out of 10.