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mailcow

22 known vulnerabilities.

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  • High 7.4

    mailcow-dockerized 2026-03b - Stored XSS in Queue Manager via unescaped

    mailcow-dockerized contains a stored cross-site scripting vulnerability in the administrator Queue Manager. The Queue Manager fetches mail queue entries from /api/v1/get/mailq/all, copies server-controlled Postfix queue fields into DataTables rows, and render…

  • High 7.0

    mailcow: dockerized vulnerable to stored XSS in user login history real_rip

    mailcow: dockerized is an open source groupware/email suite based on docker. In versions prior to 2026-03b, the user dashboard's "Seen successful connections" (login history) renders the client IP from login logs without HTML escaping. Because the server trus…

  • High 8.9

    mailcow: dockerized vulnerable to stored XSS in Quarantine attachment filenames

    mailcow: dockerized is an open source groupware/email suite based on docker. In versions prior to 2026-03b, the Quarantine details modal injects attachment filenames into HTML without escaping, allowing arbitrary HTML/JS execution. An attacker can deliver an …

  • High 7.2

    mailcow: dockerized vulnerable to Second Order SQL Injection in quarantine category via API

    mailcow: dockerized is an open source groupware/email suite based on docker. Versions prior to 2026-03b have a second-order SQL injection vulnerability in the quarantine_category field via the Mailcow API. The /api/v1/add/mailbox endpoint stores quarantine_ca…

  • High 7.1
    CVE-2025-25198 Public exploit

    mailcow: dockerized vulnerable to password reset poisoning

    mailcow: dockerized is an open source groupware/email suite based on docker. Prior to version 2025-01a, a vulnerability in mailcow's password reset functionality allows an attacker to manipulate the `Host HTTP` header to generate a password reset link pointin…

  • High 7.6

    Cross-site Scripting (XSS) via API Logs in mailcow: dockerized

    mailcow: dockerized is an open source groupware/email suite based on docker. An unauthenticated attacker can inject a JavaScript payload into the API logs. This payload is executed whenever the API logs page is viewed, potentially allowing an attacker to run …

  • High 8.8
    CVE-2024-24760 Public exploit

    Mailcow Docker Container Exposure to Local Network

    mailcow is a dockerized email package, with multiple containers linked in one bridged network. A security vulnerability has been identified in mailcow affecting versions < 2024-01c. This vulnerability potentially allows attackers on the same subnet to connect…

  • High 8.3

    mailcow-dockerized XSS Vulnerability in Quarantine UI Allows Unauthorized Access and Data Manipulation

    Mailcow: dockerized is an open source groupware/email suite based on docker. A Cross-Site Scripting (XSS) vulnerability has been identified within the Quarantine UI of the system. This vulnerability poses a significant threat to administrators who utilize the…

  • High 8.8

    Manipulation of Internal Dovecot Variables in mailcow via crafted Passwords

    mailcow is a mail server suite based on Dovecot, Postfix and other open source software, that provides a modern web UI for user/server administration. A vulnerability has been discovered in mailcow which allows an attacker to manipulate internal Dovecot varia…

  • High 7.3

    mailcow is vulnerable to shell command injection via xoauth2 authentication in imapsync​

    mailcow is a dockerized email package, with multiple containers linked in one bridged network. The Sync Job feature - which can be made available to standard users by assigning them the necessary permission - suffers from a shell command injection. A maliciou…

  • High 8.1
    CVE-2022-39258 Scanner template

    mailcow-dockerized critical information misrepresentation can lead to phishing attacks through Swagger UI

    mailcow is a mailserver suite. A vulnerability innversions prior to 2022-09 allows an attacker to craft a custom Swagger API template to spoof Authorize links. This could redirect a victim to an attacker controller place to steal Swagger authorization credent…

  • High 8.8
    CVE-2022-31138 Public exploit

    OS Command Injection in mailcow

    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, pipe…