CVE-2025-24391

Summary

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

Affected Software

VendorProductVersion RangeStatus
OTRS AGOTRS7.0.xaffected
OTRS AGOTRS8.0.xaffected
OTRS AGOTRS2023.xaffected
OTRS AGOTRS2024.xaffected
OTRS AGOTRS2025.x <= 2025.5.xaffected

Weaknesses

  • CWE-203: CWE-203 Observable Discrepancy

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

References