CSRF in Yeswiki
CVE-2026-104453
YesWiki before 4.6.7 contains a cross-site request forgery vulnerability in the admintag action that allows attackers to delete tag associations by luring administrators to crafted GET links. Attackers can supply a wide id range in the delete_tag parameter via top-level navigation, carrying the SameSite=Lax admin cookie, to bulk-delete tag triples.
Vulnerability class: CSRF (Cross-Site Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/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-5c27-6gcm-hc7x (vendor-advisory)
- www.vulncheck.com/advisories/yeswiki-before-4.6.7-csrf-tag-deletion-via-adminta… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-104453?
- CVE-2026-104453 is a medium-severity vulnerability in Yeswiki, classified under Cross-Site Request Forgery (CSRF). CVSS score: 5.4/10. Published 2026-10-02.
- How severe is CVE-2026-104453?
- Medium severity. CVSS v3 base score is 5.4 out of 10.