Best Practical Request Tracker (RT) before 4.4.7 and 5.x before 5.0.5 allows Information Disclosure via fake or spoofed RT email headers in an email message or a mail-gateway REST API call.
Conclusion & alert: CVE-2023-41259 is rated Moderate Risk (47.7/100): CVSS High severity, with low exploitation likelihood (EPSS 0.72%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.11% | 0.72% | +0.60% |
| 2 | 2026-01-10 | 0.19% | 0.11% | -0.08% |
| 3 | 2025-11-21 | — | 0.19% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2023-41259: 1 source package rows (rt4); 4 state rows across 4 repos (3.20-community, 3.21-community, 3.22-community, edge-community); fixed 4, open 0. | https://security.alpinelinux.org/vuln/CVE-2023-41259 |
debian
|
not yet assigned | CVE-2023-41259 not yet assigned priority: Debian including 2 source packages (request-tracker4, request-tracker5), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. | https://security-tracker.debian.org/tracker/CVE-2023-41259 |
ubuntu
|
medium | CVE-2023-41259 medium priority: Ubuntu including 2 source packages (request-tracker4, request-tracker5), 24 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 8, released 8, ignored 7, DNE 1. | https://ubuntu.com/security/CVE-2023-41259 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| bestpractical | request_tracker | < 4.4.7 | cpe:2.3:a:bestpractical:request_tracker:*:*:*:*:*:*:*:* |
| bestpractical | request_tracker | >= 5.0.0, < 5.0.5 | cpe:2.3:a:bestpractical:request_tracker:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://docs.bestpractical.com/release-notes/rt/4.4.7 | Release Notes Vendor Advisory |
| https://docs.bestpractical.com/release-notes/rt/5.0.5 | Release Notes Vendor Advisory |
| https://docs.bestpractical.com/release-notes/rt/index.html | Release Notes Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2023/10/msg00046.html |