CVE-2025-24391 – OTRS Information Disclosure

The following table lists the changes that have been made to the
CVE-2025-24391 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Jul. 14, 2025

    Action Type Old Value New Value
    Added Description A vulnerability in the External Interface of OTRS allows conclusions to be drawn about the existence of user accounts through different HTTP response codes and messages. This enables an attacker to systematically identify valid email addresses.

    This issue affects:

    * OTRS 7.0.X

    * OTRS 8.0.X
    * OTRS 2023.X
    * OTRS 2024.X
    * OTRS 2025.X

    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    Added CWE CWE-203
    Added Reference https://otrs.com/release-notes/otrs-security-advisory-2025-07/
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