CVEvulnerability
CVE-2025-43921
5.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2025-04-20
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CVSS 3.1 ([email protected])
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Weaknesses
- CWE-863
Description
GNU Mailman 2.1.39, as bundled in cPanel (and WHM), allows unauthenticated attackers to create lists via the /mailman/create endpoint. NOTE: multiple third parties report that they are unable to reproduce this, regardless of whether cPanel or WHM is used.
Affected configurations
• gnu mailman (>= 2.1.1 <= 2.1.39)
Related
Weakness · CWE (1)
- CWE-863 Incorrect Authorization weakness
References
- https://code.launchpad.net/~mailman-coders/mailman/2.1 Product
- https://github.com/0NYX-MY7H/CVE-2025-43921 Exploit, Third Party Advisory
- https://github.com/cpanel/mailman2-python3 github.com
- https://www.openwall.com/lists/oss-security/2025/04/21/6 www.openwall.com