XSS in Bestpractical Request Tracker
CVE-2026-44228
RT is an open source, enterprise-grade issue and ticket tracking system. Versions 6.0.0 and above, prior to 6.0.3, contain a stored Cross-Site Scripting (XSS) vulnerability, where user-controlled data is rendered without proper HTML escaping. An authenticated user with permission to set the relevant data can inject JavaScript that executes when another RT user views the affected page. This issue has been fixed in version 6.0.3.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (16.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Bestpractical Request Tracker
- Bestpractical Rt — versions >= 6.0.0, < 6.0.3
Weakness classification (CWE)
References
- github.com/bestpractical/rt/security/advisories/GHSA-pfgp-5j8g-phgc (Vendor Advisory)
- github.com/bestpractical/rt/releases/tag/rt-6.0.3 (Release Notes)
Frequently asked questions
- What is CVE-2026-44228?
- CVE-2026-44228 is a medium-severity vulnerability in Bestpractical Request Tracker, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-07-20.
- How severe is CVE-2026-44228?
- Medium severity. CVSS v3 base score is 5.4 out of 10.