CVE-2026-6841
CVE-2026-6841 is a medium-severity vulnerability in Bestpractical Request Tracker with a CVSS 3.x base score of 6.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.
Key facts
- Severity: Medium (CVSS 3.x base score 6.1)
- CVSS v4: 5.1
- EPSS exploit prediction: 0% (14th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-31269
- Weakness: CWE-79
- Affected product: Bestpractical Request Tracker
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-6841?
- 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.
- How severe is CVE-2026-6841?
- CVE-2026-6841 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-6841 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-6841?
- CVE-2026-6841 affects Bestpractical Request Tracker. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-6841?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-6841 have an EU (EUVD) identifier?
- Yes. CVE-2026-6841 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-31269.
- When was CVE-2026-6841 published?
- CVE-2026-6841 was published on 2026-05-21 and last updated on 2026-06-17.
References
- https://cert.pl/en/posts/2026/05/CVE-2026-6841
- https://docs.bestpractical.com/release-notes/rt/5.0.10
- https://docs.bestpractical.com/release-notes/rt/6.0.3
- https://requesttracker.com/request-tracker/
Affected products (1)
- cpe:2.3:a:bestpractical:request_tracker:*:*:*:*:*:*:*:*
More vulnerabilities in Bestpractical Request Tracker
- CVE-2017-5944 — High (CVSS 8.8): The dashboard subscription interface in Request Tracker (RT) 4.x before 4.0.25, 4.2.x before 4.2.14, and 4.4.x before…
- CVE-2017-5943 — High (CVSS 8.8): Request Tracker (RT) 4.x before 4.0.25, 4.2.x before 4.2.14, and 4.4.x before 4.4.2 allows remote attackers to obtain…
- CVE-2023-45024 — High (CVSS 7.5): Best Practical Request Tracker (RT) 5 before 5.0.5 allows Information Disclosure via a transaction search in the…
- CVE-2023-41260 — High (CVSS 7.5): Best Practical Request Tracker (RT) before 4.4.7 and 5.x before 5.0.5 allows Information Exposure in responses to…
- CVE-2023-41259 — High (CVSS 7.5): Best Practical Request Tracker (RT) before 4.4.7 and 5.x before 5.0.5 allows Information Disclosure via fake or spoofed…
- CVE-2021-38562 — High (CVSS 7.5): Best Practical Request Tracker (RT) 4.2 before 4.2.17, 4.4 before 4.4.5, and 5.0 before 5.0.2 allows sensitive…
All CVEs affecting Bestpractical Request Tracker →
Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities
- CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
- CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
- CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
- CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
- CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
- CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…
Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →