CVE-2023-41260 — Best Practical Request Tracker (RT) before 4

Best Practical Request Tracker (RT) before 4.4.7 and 5.x before 5.0.5 allows Information Exposure in responses to mail-gateway REST API calls.

01What is this vulnerability?

Best Practical Request Tracker (RT) before 4.4.7 and 5.x before 5.0.5 allows Information Exposure in responses to mail-gateway REST API calls.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-11-03T00:00:00.000Z
• Last modified: 2025-11-04T19:21:06.955Z

09References

• docs.bestpractical.com — https://docs.bestpractical.com/release-notes/rt/index.html
• docs.bestpractical.com — https://docs.bestpractical.com/release-notes/rt/5.0.5
• docs.bestpractical.com — https://docs.bestpractical.com/release-notes/rt/4.4.7