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
Scores
CVSS v3
5.3
EPSS
0.0007
EPSS Percentile
21.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-203
Status
published
Products (5)
OTRS AG/OTRS
2023.x
OTRS AG/OTRS
2024.x
OTRS AG/OTRS
2025.x - 2025.5.x
OTRS AG/OTRS
7.0.x
OTRS AG/OTRS
8.0.x
Published
Jul 14, 2025
Tracked Since
Feb 18, 2026