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    CVE-2022-31138

    mailcow is a mailserver suite. Prior to mailcow-dockerized version 2022-06a, an extended privilege vulnerability can be exploited by manipulating the custom parameters regexmess, skipmess, regexflag, delete2foldersonly, delete2foldersbutnot, regextrans2, pipemess, or maxlinelengthcmd to execute arbitrary code. Users should update their mailcow instances with the `update.sh` script in the mailcow root directory to 2022-06a or newer to receive a patch for this issue. As a temporary workaround, the Syncjob ACL can be removed from all mailbox users, preventing changes to those settings.

    Published:Jul 11, 2022
    Last Modified:Apr 22, 2025
    EPS:Jul 11, 2022
    EPSS Score:0.05798
    CVSS Score:8.8

    Affected Products

    Vendor
    Mailcow
    Product
    Mailcow\

    Exploits

    https://github.com/ly1g3/Mailcow-CVE-2022-31138https://github.com/ly1g3/Mailcow-CVE-2022-31138https://github.com/ly1g3/Mailcow-CVE-2022-31138

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    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