CVE-2026-44229 RT: Cross-Site Scripting via inline-served uploaded content

What is CVE-2026-44229?

CVE-2026-44229 is a medium-severity cross-site scripting vulnerability in bestpractical rt, published on 20 Jul 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

RT is an open source, enterprise-grade issue and ticket tracking system. Versions 5.0.0 and 6.0.0 and above, prior to both 5.0.10 and 6.0.3 contain a Cross-Site Scripting (XSS) vulnerability where uploaded content is served inline rather than as an attachment. An authenticated user who can upload content can include JavaScript in the upload that will execute in the browser session of any RT user who later views or downloads it. This issue has been fixed in versions 5.0.10 and 6.0.3.

Weakness: CWE-79

Which versions are affected by CVE-2026-44229?

It affects 1 product.

Products include Bestpractical Request Tracker.

How do I fix CVE-2026-44229?

Upgrade to a fixed version.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2026-44229 being exploited?

There is no known exploitation of CVE-2026-44229 in the wild and no public exploit code.

Other vulnerabilities in bestpractical rt

• CVE-2026-44231 RT: Privilege escalation and information disclosure via REST 2.0 user collection endpoint Critical 9.1
• CVE-2017-5943 Information disclosure in n/a High 8.8
• CVE-2017-5944 Code injection in n/a High 8.8
• CVE-2023-41259 Information disclosure in n/a High 7.5
• CVE-2023-41260 Information disclosure in n/a High 7.5

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2026-44229, GHSA-x576-pvwp-c2qv, UBUNTU-CVE-2026-44229.