Medium severity · published Jul 20, 2026
CVE-2026-44228
RT: Stored Cross-Site Scripting via insufficient template escaping
5.4
CVSS
0.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RT
rt · bestpractical
>= 6.0.0, < 6.0.3 · source: vendor
RT
Request Tracker · Bestpractical
6.0.0 before 6.0.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-44228
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-44228
Release Notes
https://github.com/bestpractical/rt/releases/tag/rt-6.0.3
Vendor Advisory
https://github.com/bestpractical/rt/security/advisories/GHSA-pfgp-5j8g-phgc
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