CVE-2025-43919

GNU Mailman 2.1.39, as bundled in cPanel (and WHM), allows unauthenticated attackers to read arbitrary files via ../ directory traversal at /mailman/private/mailman (aka the private archive authentication endpoint) via the username parameter. NOTE: multiple third parties report that they are unable to reproduce this, regardless of whether cPanel or WHM is used.

CVSS v3 5.8 MEDIUM

5.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://code.launchpad.net/~mailman-coders/mailman/2.1	Product
https://github.com/0NYX-MY7H/CVE-2025-43919	Exploit Mitigation Third Party Advisory
https://github.com/cpanel/mailman2-python3
https://www.openwall.com/lists/oss-security/2025/04/21/6

Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:mailman:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-04-20 01:15

Updated : 2025-04-28 14:15

NVD link : CVE-2025-43919

Mitre link : CVE-2025-43919

CVE.ORG link : CVE-2025-43919

JSON object : View

Products Affected

gnu

mailman

CWE

CWE-24

Path Traversal: '../filedir'

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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