What’s Vulnerable › Vulnerabilities

CVE-2023-41259

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-11-03 · updated 2026-06-17
• Weakness: CWE-200

Description

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.

Affected products

• Best Practical Request Tracker: before 4.4.7; from 5.0.0 before 5.0.5 — fixed in 4.4.7, 5.0.5

How to fix

Upgrade to a fixed version: Best Practical Request Tracker 4.4.7, 5.0.5. Check the vendor advisory for mitigations.

References

• https://docs.bestpractical.com/release-notes/rt/4.4.7
• https://docs.bestpractical.com/release-notes/rt/5.0.5
• https://docs.bestpractical.com/release-notes/rt/index.html
• https://docs.bestpractical.com/release-notes/rt/4.4.7
• https://docs.bestpractical.com/release-notes/rt/5.0.5
• https://docs.bestpractical.com/release-notes/rt/index.html
• https://lists.debian.org/debian-lts-announce/2023/10/msg00046.html

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