PT-2026-34812 · Xibo · Xibo

Swarnimbandekar · Published 2026-04-24 · Updated 2026-04-25 · CVE-2026-31953

Positive Technologies (AI Summary)

CVSS v3.1

6.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Xibo versions prior to 4.4.1

Description A stored Cross-Site Scripting (XSS) issue allows an authenticated user with notification creation permissions to inject arbitrary JavaScript into the notification body. When a notification is configured as an "interrupt," the payload executes automatically in the browser of targeted users upon login without requiring interaction. This requires the attacker to have privileges to access the Notification Centre and the ability to use the "Add Notification" button, permissions typically not granted to non-administrators.

Recommendations Upgrade to version 4.4.1. Revoke notification creation and Notification Centre access privileges from untrusted users as a temporary workaround.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-31953

Affected Products

Xibo

References · 5

• https://github.com/xibosignage/xibo-cms/security/advisories/GHSA-85w9-c833-q4w2 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-31953 · Security Note
• https://github.com/xibosignage/xibo-cms/releases/tag/4.4.1 · Note
• https://twitter.com/infoflowcloud/status/2048101250231648596 · Twitter Post
• https://twitter.com/CVEnew/status/2048099345241620906 · Twitter Post