SSRF in Requarks Wiki.js
CVE-2026-92775
Wiki.js through 2.5.314 contains a server-side request forgery vulnerability in the Image Prefetch renderer that fetches arbitrary URLs without protocol, host, or address validation. Attackers with page editing permissions can inject img elements with the prefetch-candidate class to make the server request internal services and cloud metadata endpoints, with responses returned to the attacker.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (35.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 35.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/geo-chen/oss/blob/main/wiki.md (technical-description, exploit)
- github.com/requarks/wiki/blob/v2.5.314/server/modules/rendering/html-image-pref… (technical-description)
- github.com/requarks/wiki (product)
- www.vulncheck.com/advisories/wiki-js-through-2.5.314-server-side-request-forger… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-92775?
- CVE-2026-92775 is a medium-severity vulnerability in Requarks Wiki.js, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.5/10. Published 2026-09-16.
- How severe is CVE-2026-92775?
- Medium severity. CVSS v3 base score is 6.5 out of 10.