CVE-2026-92775: SSRF (CVSS 6.5)

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.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-918 Server-Side Request Forgery (SSRF)

References

Other 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

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-92775? +

CVE-2026-92775 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2026-92775? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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