Vulnerability · Published Jul 20, 2026 · Assigned by GitHub_M

CVE-2026-44228RT: Stored Cross-Site Scripting via insufficient template escaping

Medium 5.4

In plain English

A medium-severity cross-site scripting in rt from bestpractical. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.3%top 82.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Ubuntu:26.10	request-tracker5	no fix listed	UBUNTU-CVE-2026-44228

Affected products (as reported)

Vendor	Product	Versions
bestpractical	rt	>= 6.0.0, < 6.0.3

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

https://github.com/bestpractical/rt/security/advisories/GHSA-pfgp-5j8g-phgc x_refsource_CONFIRM
https://github.com/bestpractical/rt/releases/tag/rt-6.0.3 x_refsource_MISC