Vulnerability · Published Sep 16, 2026 · Assigned by VulnCheck

CVE-2026-92775Wiki.js through 2.5.314 Server-Side Request Forgery via Image Prefetch

Medium 6.5

In plain English

A medium-severity server-side request forgery in Wiki.js from requarks. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).

Severity (CVSS 3.1)6.5Medium

Exploit odds (30 days)0.4%top 64.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
requarks	Wiki.js	0 – through 2.5.314

Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

Researcher write-up, finding 2 technical-description, exploit
prefetch fetches the src attribute unvalidated and embeds the response technical-description
https://github.com/requarks/wiki product
VulnCheck Advisory: Wiki.js through 2.5.314 Server-Side Request Forgery via Image Prefetch third-party-advisory