CVE-2026-92775
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://github.com/geo-chen/oss/blob/main/wiki.md#finding-2-server-side-request-forgery-via-the-image-prefetch-renderer-no-urlhost-validation-on-fetched-image-src
- https://github.com/requarks/wiki
- https://github.com/requarks/wiki/blob/v2.5.314/server/modules/rendering/html-image-prefetch/renderer.js#L1-L21
- https://www.vulncheck.com/advisories/wiki-js-through-2.5.314-server-side-request-forgery-via-image-prefetch
CWEs
CWE-918
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.