CVE-2026-44228: RT: Stored Cross-Site Scripting via insufficient template escaping
Vulnerability summary
CVE-2026-44228 is a medium (CVSS 5.4) Cross-site Scripting vulnerability in bestpractical request_tracker. EPSS estimates a 0.26% chance of exploitation in the next 30 days, higher than 16.1% of scored vulnerabilities.
Timeline
- 20-07-2026PublishedVulnerability first disclosed.
- 21-07-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
- NVDNIST5.4MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EPSS trend
Probability
0.26%
Chance of exploitation in the next 30 days
Percentile
16%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.26% on 22-09-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Bestpractical2 products
- request_tracker≥ 6.0.0, < 6.0.3
- rt≥ 6.0.0, < 6.0.3
Ubuntu1 product
- request-tracker5All versions (No fix recorded)
2 vendors · 3 products
References
4 links- github.com/bestpractical/rt/security/advisories/GHSA-pfgp-5j8g-phgcX Refsource CONFIRMVendor Advisory