CVE-2026-48209

Reflected XSS in authenticated agent context

State: Published
Severity: 7.1 High
Published: Jun 1, 2026
Updated: Jun 1, 2026
Reserved: May 21, 2026

Description

An improper neutralization of user-controllable input in OTRS or ((OTRS)) Community Edition ticket handling allows authenticated attackers to perform reflected cross-site scripting (XSS) attacks via crafted request parameters associated with ticket actions. By injecting malicious JavaScript into manipulated request URLs, attackers can execute arbitrary script code in the context of an authenticated agent session when the crafted link is opened.

This issue affects OTRS:

* 7.0.x

Please note that ((OTRS)) Community Edition 6.x and before are vulnerable. Products based on the ((OTRS)) Community Edition also very likely to be affected

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N	OTRS

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-116 Improper Encoding or Escaping of Output

Affected Products

Product	Versions
OTRSOTRS AG	7.0.xAffected
((OTRS)) Community EditionOTRS AG	6.xAffected

References

https://otrs.com/release-notes/otrs-security-advisory-2026-08/

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