xibosignage xibo-cms up to 4.4.0 Web Contents authorization

Summaryinfo

A vulnerability, which was classified as problematic, has been found in xibosignage xibo-cms up to 4.4.0. This impacts an unknown function of the component Web Contents Handler. This manipulation causes authorization. The identification of this vulnerability is CVE-2026-31956. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in xibosignage xibo-cms up to 4.4.0. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component Web Contents Handler. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. As an impact it is known to affect confidentiality. The summary by CVE is:

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 saved reports belonging to other users. Exploitation of the vulnerability is possible on behalf of an authorized user who has any of the following privileges: Page which shows all Layouts that have been created for the purposes of Layout Management; page which shows all Campaigns that have been created for the purposes of Campaign Management; and page which shows all Reports that have been Saved. Users should upgrade to version 4.4.1 which fixes this issue. Upgrading to a fixed version is necessary to remediate.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-31956 since 03/10/2026. The exploitation appears to be easy. The attack can be launched remotely. Neither technical details nor an exploit are publicly available.

Upgrading to version 4.4.1 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Type

• Content Management System

Vendor

• xibosignage

Name

• xibo-cms

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4.0

Website

• Product: https://github.com/xibosignage/xibo-cms/

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