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CVE-2026-48209

Reflected XSS in authenticated agent context

High7.1EPSS 0.20%
Published
Updated
Reserved
Assigned by
OTRS

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 scores of CVE-2026-48209, by who scored it
Scored byCVSSScoreVector
OTRSCNA (assigner)3.1High7.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
NVDNVD · Analyzed3.1High7.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:N
EPSS (exploitation in 30 days)
0.20% · top 90% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.

Weakness

Affected products

What to do

Solution: Update to latest version of OTRS (2026.4.1. or later). Please note that there will be no OTRS 7 patches

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .