Cross-site scripting in OTRS - CVE-2020-1766
Published: January 10, 2020 / Updated: April 1, 2021
Vulnerability identifier: #VU51864
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2020-1766
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
Due to improper handling of uploaded images it is possible in very unlikely and rare conditions to force the agents browser to execute malicious javascript from a special crafted SVG file rendered as inline jpg file. This issue affects: ((OTRS)) Community Edition 5.0.x version 5.0.39 and prior versions; 6.0.x version 6.0.24 and prior versions. OTRS 7.0.x version 7.0.13 and prior versions.
Affected software
OTRS
otrs (Alpine package)
otrs (Alpine package)
How to mitigate CVE-2020-1766
Install update from vendor's website.
otrs (Alpine package) - update to 6.0.33-r0
External References
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00038.html
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00066.html
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00077.html
- https://lists.debian.org/debian-lts-announce/2020/01/msg00027.html
- https://otrs.com/release-notes/otrs-security-advisory-2020-02/