October 04, 2019 — 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@otrs.org
Security Advisory Details
- ID: OSA-2019-13
- Date: 2019-09-03
- Title: Stored XSS
- Severity: 3.2 Low
- Product: OTRS 7.0.x, OTRS 6.0.x, OTRS 5.0.x
- Fixed in: OTRS 7.0.12, OTRS 6.0.23, OTRS 5.0.38
- FULL CVSS v3 VECTOR: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C
- References: CVE-2019-16375
Vulnerability Description
This advisory covers vulnerabilities discovered in the OTRS framework.
Privilege Escalation
An attacker who is logged into OTRS as an agent or customer user with appropriate permissions can create a carefully crafted string containing malicious JavaScript code as an article body. This malicious code is executed when an agent compose an answer to the original article.
Affected by this vulnerability are all releases of OTRS 7.0.x up to and including 7.0.11, OTRS 6.0.x up to and including 6.0.22, OTRS 5.0.x up to and including 5.0.37.
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:
Detailed information about the changes:
OTRS 6.0
OTRS 5.0
However, to avoid unwanted side effects, we recommend a complete update.
Thanks to Abhishek Simkhada for discovering and reporting this issue.