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    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.

    Published:Apr 20, 2025
    Last Modified:Apr 28, 2025
    EPS:Apr 20, 2025
    EPSS Score:0.00103
    CVSS Score:5.8

    Affected Products

    Vendor
    Gnu
    Product
    Mailman

    Exploits

    https://github.com/0NYX-MY7H/CVE-2025-43919https://github.com/0NYX-MY7H/CVE-2025-43919https://github.com/cybersecplayground/CVE-2025-43919-POC

    Related CVEs

    CVE-2025-43921 (CVSS 5.3) — GNU Mailman 2.1.39, as bundled in cPanel (and WHM), allows unauthenticated attackers to create lists via the /…
    CVE-2025-43920 (CVSS 5.4) — GNU Mailman 2.1.39, as bundled in cPanel (and WHM), in certain external archiver configurations, allows unauth…
    CVE-2021-34337 (CVSS 6.3) — An issue was discovered in Mailman Core before 3.3.5. An attacker with access to the REST API could use timing…
    CVE-2021-44227 (CVSS 8.8) — In GNU Mailman before 2.1.38, a list member or moderator can get a CSRF token and craft an admin request (usin…
    CVE-2021-43332 (CVSS 6.5) — In GNU Mailman before 2.1.36, the CSRF token for the Cgi/admindb.py admindb page contains an encrypted version…
    CVE-2021-43331 (CVSS 6.1) — In GNU Mailman before 2.1.36, a crafted URL to the Cgi/options.py user options page can execute arbitrary Java…
    CVE-2021-42096 (CVSS 4.3) — GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A certain csrf_token value is derived from th…
    CVE-2021-42097 (CVSS 8) — GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A csrf_token value is not specific to a singl…
    CVE-2020-15011 (CVSS 4.3) — GNU Mailman before 2.1.33 allows arbitrary content injection via the Cgi/private.py private archive login page…
    CVE-2020-12108 (CVSS 6.5) — /options/mailman in GNU Mailman before 2.1.31 allows Arbitrary Content Injection.…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High