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CVE-2023-41259

22
FAUCET Score

CVE-2023-41259 is an information disclosure vulnerability affecting Best Practical Request Tracker (RT) versions before 4.4.7 and 5.x before 5.0.5. It allows an attacker to disclose sensitive information by crafting fake or spoofed RT email headers in an email message or via the mail-gateway REST API. This vulnerability has a CVSS score of 7.5 (HIGH), indicating a network-based attack with low complexity and high confidentiality impact. There is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog, though it has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.4.7CPE matchmatch criteria
cpe:2.3:a:bestpractical:request_tracker:*:*:*:*:*:*:*:*
>= 5.0.0, < 5.0.5CPE matchmatch criteria
cpe:2.3:a:bestpractical:request_tracker:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.72%
Probability of exploitation in next 30 days
EPSS Percentile
50.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0072 is in the 26th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

lists.debian.org / debian-lts-announce/2023/10/msg00046.html
docs.bestpractical.com / release-notes/rt/4.4.7
Release NotesVendor Advisory
docs.bestpractical.com / release-notes/rt/5.0.5
Release NotesVendor Advisory
docs.bestpractical.com / release-notes/rt/index.html
Release NotesVendor Advisory