SSRF in Yeswiki
CVE-2026-116205
YesWiki before 4.7.0 contains an unauthenticated server-side request forgery vulnerability that allows remote attackers to fetch arbitrary URLs by supplying [[|URL]] wiki syntax to the render handler. Attackers can pass the syntax in the content parameter of the page render handler to reach internal hosts and ports and read their responses.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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-x9j5-r988-9jcc (vendor-advisory)
- www.vulncheck.com/advisories/yeswiki-before-4.7.0-unauthenticated-ssrf-via-url-… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-116205?
- CVE-2026-116205 is a medium-severity vulnerability in Yeswiki, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2026-10-25.
- How severe is CVE-2026-116205?
- Medium severity. CVSS v3 base score is 5.3 out of 10.