What is CVE-2026-31956?

CVE-2026-31956 is a medium-severity vulnerability in Xibosignage Xibo-cms, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-04-24.

How severe is CVE-2026-31956?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Xibosignage Xibo-cms

CVE-2026-31956

Xibo is an open source digital signage platform with a web content management system and Windows display player software. Prior to version 4.4.1, any authenticated user can manually construct a URL to preview campaigns/regions, and export…

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.000 (10.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

Xibosignage Xibo-cms — versions < 4.4.1

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-q6rv-8hhj-3fr8 (x_refsource_CONFIRM)
https://github.com/xibosignage/xibo-cms/releases/tag/4.4.1 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-31956?: CVE-2026-31956 is a medium-severity vulnerability in Xibosignage Xibo-cms, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-04-24.
How severe is CVE-2026-31956?: Medium severity. CVSS v3 base score is 4.3 out of 10.