CVE-2026-44230: XSS (CVSS 6.1)

Description

RT is an open source, enterprise-grade issue and ticket tracking system. Versions 5.0.4 up to (but not including) 5.0.10, and 6.0.0 up to (but not including) 6.0.3 contain a reflected Cross-Site Scripting (XSS) vulnerability where an attacker who can induce an authenticated RT user to visit a crafted URL can execute arbitrary JavaScript in that user's browser session. This issue has been fixed in versions 5.0.10 and 6.0.3.

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CVSS v3.1 Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS — Exploit Prediction

0.0026

Probability of exploitation

0.18%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

References

Other References

https://github.com/bestpractical/rt/releases/tag/rt-6.0.3 https://github.com/bestpractical/rt/security/advisories/GHSA-p724-v26h-32g9

Frequently Asked Questions

What is CVE-2026-44230? +

RT is an open source, enterprise-grade issue and ticket tracking system. Versions 5.0.4 up to (but not including) 5.0.10, and 6.0.0 up to (but not including) 6.0.3 contain a reflected Cross-Site Scripting (XSS) vulnerability where an attacker who can induce an authenticated RT user to visit a crafted URL can execute arbitrary JavaScript in that user's browser session. This issue has been fixed in versions 5.0.10 and 6.0.3. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2026-44230? +

CVE-2026-44230 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0026, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-44230? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-44230