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    1 vulnerability by myBB Group

    CVE-2011-10018 (GCVE-0-2011-10018)

    Vulnerability from cvelistv5 – Published: 2025-08-13 20:35 – Updated: 2026-04-07 14:02
    VLAI
    Title
    myBB 1.6.4 Backdoor Arbitrary Command Execution
    Summary
    myBB version 1.6.4 was distributed with an unauthorized backdoor embedded in the source code. The backdoor allowed remote attackers to execute arbitrary PHP code by injecting payloads into a specially crafted collapsed cookie. This vulnerability was introduced during packaging and was not part of the intended application logic. Exploitation requires no authentication and results in full compromise of the web server under the context of the web application.
    Severity
    10 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-912 - Hidden Functionality
    • CWE-94 - Improper Control of Generation of Code ('Code Injection')
    Assigner
    References
    Impacted products
    Date Public
    2011-10-09 00:00
    Credits
    MyBB
    Show details on NVD website
    To clipboard 

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