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TI-2023-02374 Aliases CVE-2023-2534GHSA-67qg-pjv2-pg9v

Information disclouse and DoS via websocket push events

Priority LOW 36CWE-285Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-285.

Summary

Improper Authorization vulnerability in OTRS AG OTRS 8 (Websocket API backend) allows any as Agent authenticated attacker to track user behaviour and to gain live insight into overall system usage. User IDs can easily be correlated with real names e. g. via ticket histories by any user. (Fuzzing for garnering other adjacent user/sensitive data). Subscribing to all possible push events could also lead to performance implications on the server side, depending on the size of the installation and the number of active users. (Flooding)This issue affects OTRS: from 8.0.X before 8.0.32.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00526 44th percentileScored 2026-11-07
Fix Fixed OTRS (OTRS AG): 8.0.32

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OTRS AGOTRS8.0.x to before 8.0.328.0.32Patch availableCNA
  • OTRS VendorOTRS AG Affected 8.0.x to before 8.0.32 Fixed in 8.0.32 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:otrs:otrs:*:*:*:*:*:*:*:*8.0.0 to before 8.0.32VulnerableOTRS AG
  • cpe:2.3:a:otrs:otrs:*:*:*:*:*:*:*:* Versions 8.0.0 to before 8.0.32 Vulnerable ·OTRS AG

Remediation

  • Fix · CNA OTRS (OTRS AG) Fixed in 8.0.32

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-2534
  2. 2026-10-03 Alias added: GHSA-67qg-pjv2-pg9v

References

Advisory 1

  • TI-2017-12458 In OTRS 6.0.x up to and including 6.0.1, OTRS 5.0.x up to and including 5.0.24, and OTRS… CVSS 3.0HIGH 8.8
  • TI-2026-35608 SQL Injection via MySQL Quote Method CVSS 3.1CRITICAL 9.1
  • TI-2023-04991 SSL Certificates are not checked for E-Mail Handling CVSS 3.1CRITICAL 9.1
  • TI-2022-04045 SQL Injection via OTRS Search API CVSS 3.1CRITICAL 9.8
  • TI-2017-12258 Code injection exists in Kernel/System/Spelling.pm in Open Ticket Request System (OTRS) 5… CVSS 3.0HIGH 8.8
  • TI-2017-06753 In Open Ticket Request System (OTRS) 3.3.x through 3.3.16, 4.x through 4.0.23, and 5.x… CVSS 3.0HIGH 8.8
See all 141 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences