CVE-2026-6841

Name: CVE-2026-6841
Creator: NVD / NIST
Published: 2026-05-21T13:16:20.273+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.1/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2026-6841 is a medium-severity vulnerability rated 5.1/10 on the CVSS scale. Request Tracker is vulnerable to a reflected cross-site scripting (XSS) vulnerability via the "Page" parameter in GET requests. An attacker can craft a URL that, when opened, results in arbitrary JavaScript execution in the victim’s browser. This vulnerability affects versions from 5.0.4 up to 5.0.9 and from 6.0.0 up to 6.0.2.. EPSS estimates a 0.24% chance of exploitation in the next 30 days.

Description

Request Tracker is vulnerable to a reflected cross-site scripting (XSS) vulnerability via the "Page" parameter in GET requests. An attacker can craft a URL that, when opened, results in arbitrary JavaScript execution in the victim’s browser. This vulnerability affects versions from 5.0.4 up to 5.0.9 and from 6.0.0 up to 6.0.2.

Metrics

CVSS 3.1

6.1/10

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

CVSS 4.0

5.1/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.24%

14.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Bestpractical	Request Tracker	>= 5.0.4, < 5.0.10
Bestpractical	Request Tracker	>= 6.0.0, < 6.0.3

References

https://cert.pl/en/posts/2026/05/CVE-2026-6841Third Party Advisory
https://docs.bestpractical.com/release-notes/rt/5.0.10Release Notes
https://docs.bestpractical.com/release-notes/rt/6.0.3Release Notes
https://requesttracker.com/request-tracker/Product

Timeline

Published: May 21, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-6841?

How severe is CVE-2026-6841?

CVE-2026-6841 has a CVSS score of 5.1/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2026-6841?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-6841?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST