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CVE-2026-42141

HighPublished

Xibo: Authenticated Server-Side Request Forgery (SSRF) in Library Upload via URL functionality

Published: May 12, 2026
Updated: May 13, 2026
Assigning CNA: GitHub_M
Evidence observed: Aug 25, 2026

Primary CVSS

7.7/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

0.4%

Low · next 30 days

Percentile: 30.7%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

CVE-2026-42141-xibo-ssrfPoC
Proof-of-concept for SSRF in Xibo CMS via uploadUrl endpoint, demonstrating authenticated server-side request forgery to internal resources.

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