Release Notes

Security Advisory 2017-02: Security Update for all OTRS Versions

OTRS Group, the world’s leading provider of the OTRS service management suite, including the fully managed OTRS solution and the ITIL® V3-compliant IT service management software OTRS::ITSM.


June 06, 2017 — Please read carefully and check if the version of your OTRS system is affected by this vulnerability.

Please send information regarding vulnerabilities in OTRS to:


Security Advisory Details


  • ID: OSA-2017-02
  • Date: 2017-06-06
  • Title: Reflected cross-site scripting in OTRS
  • Severity: 3.4 low
  • Product: OTRS 5.0.x, OTRS 4.0.x, OTRS 3.3.x
  • Fixed in: OTRS 5.0.20, OTRS 4.0.24, OTRS 3.3.17
  • References: –


Vulnerability Description


This advisory covers vulnerabilities discovered in the OTRS framework.


Information Disclosure


Certain pages of the OTRS interface are affected by a cross-site scripting vulnerability. It fails to sanitize user input to sufficiently remove HTML tags such as JavaScript from user input. A remote attacker can craft a malicious link containing JavaScript or other arbitrary HTML that will be executed in another user’s browser in the context of their OTRS session.


Affected by this vulnerability are all releases of OTRS 5.0.x up to and including 5.0.19, OTRS 4.0.x up to and including 4.0.23 and OTRS 3.3.x up to and including 3.3.16.

This vulnerability is fixed in the latest versions of OTRS, and it is recommended to upgrade to the latest patch level.

Fixed releases can be found at:

Thanks to Alexandre Vezina for discovering and reporting this issue.

Release Name:

Security Advisory 2017-02: Security Update for all OTRS Versions


  • pub 2048R/9C227C6B 2011-03-21 [expires at: 2017-08-20]
  • uid OTRS Security Team <>
  • GPG Fingerprint E330 4608 DA6E 34B7 1551 C244 7F9E 44E9 9C22 7C6B