CVE-2023-5421

Possible XSS execution in customer information

Description

An attacker who is logged into OTRS as an user with privileges to create and change customer user data may manipulate the CustomerID field to execute JavaScript code that runs immediatly after the data is saved.The issue onlyoccurs if the configuration for AdminCustomerUser::UseAutoComplete was changed before. This issue affects OTRS: from 7.0.X before 7.0.47, from 8.0.X before 8.0.37; ((OTRS)) Community Edition: from 6.0.X through 6.0.34.

Remediation

Solution:

  • Update to OTRS 7.0.47 or OTRS 8.0.37.

Workaround:

  • Switch AdminCustomerUser::UseAutoComplete off

Categories

3.5
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.46%
Vendor Advisory otrs.com
Affected: OTRS AG OTRS
Affected: OTRS AG ((OTRS)) Community Edition
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2023-5421?
CVE-2023-5421 has been scored as a low severity vulnerability.
How to fix CVE-2023-5421?
To fix CVE-2023-5421: Update to OTRS 7.0.47 or OTRS 8.0.37.
Is CVE-2023-5421 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-5421 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-5421?
CVE-2023-5421 affects OTRS AG OTRS, OTRS AG ((OTRS)) Community Edition.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.