CVE-2025-9158: Best Practical Request Tracker

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

The Request Tracker software is vulnerable to a Stored XSS vulnerability in calendar invitation parsing feature, which displays invitation data without HTML sanitization. XSS vulnerability allows an attacker to send a specifically crafted e-mail enabling JavaScript code execution by displaying the ticket in the context of the logged-in user. This vulnerability affects versions from 5.0.4 through 5.0.8 and from 6.0.0 through 6.0.1.

Affected products

• Best Practical Request Tracker: from 5.0.4, up to and including 5.0.8; from 6.0.0, up to and including 6.0.1

Published 2025-10-24. Last modified 2026-10-08.