CVE-2026-48212

Stored XSS in external pages

State: Published
Severity: 4.8 Medium
Published: Oct 12, 2026
Updated: Oct 15, 2026
Reserved: May 21, 2026

Description

An OTRS administrator can enter arbitrary JavaScript into the content of an OTRS Custom Page, which is stored by the application and subsequently executed in the browser of users accessing that page.

This issue affects OTRS:

* 7.0.X * 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.7.X

Scores

CVSS	Score	Vector	Source
3.1	4.8 Medium	CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N	OTRS

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
OTRSOTRS GmbH (former OTRS AG)	7.0.xAffected 8.0.xAffected 2023.xAffected 2024.xAffected 2025.xAffected 2026.x through 2026.6.xAffected

References

https://otrs.com/release-notes/otrs-security-advisory-2026-11/

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