CVE-2026-42141 Xibo: Authenticated Server-Side Request Forgery (SSRF) in Library Upload via URL functionality
Authenticated users with library upload permissions can perform server-side request forgery to access internal resources or cloud metadata.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-42141?
CVE-2026-42141 is a high-severity server-side request forgery vulnerability in xibosignage xibo-cms, published on 12 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Xibo is an open source digital signage platform with a web content management system and Windows display player software. Prior to 4.4.1, an authenticated Server-Side Request Forgery (SSRF) vulnerability in the Xibo CMS allows users with Library upload permissions to make arbitrary HTTP requests from the CMS server to internal or external network resources. This can be exploited to scan internal infrastructure, access local cloud metadata endpoints (e.g., AWS IMDS), interact with internal services that lack authentication, or exfiltrate data. This vulnerability is fixed in 4.4.1.
Weakness: CWE-918
Which versions are affected by CVE-2026-42141?
How do I fix CVE-2026-42141?
No fix has been published for CVE-2026-42141 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-42141 being exploited?
There is no known exploitation of CVE-2026-42141 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as GHSA-fwq8-c4gw-pxmh.