Cross-site scripting in Admidio - CVE-2026-41661

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Main Vulnerability Database Vulnerabilities #VU127164

Cross-site scripting in Admidio - CVE-2026-41661

Published: April 23, 2026


Vulnerability identifier: #VU127164
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2026-41661
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Admidio
Affected software:
Admidio

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary JavaScript in a user's browser.

The vulnerability exists due to cross-site scripting in system/msg_window.php when handling crafted GET parameters. A remote attacker can send a specially crafted link to execute arbitrary JavaScript in a user's browser.

User interaction is required, and the issue is triggered via the message_id and message_var1 parameters after square brackets in user input are converted into HTML angle brackets.


How to mitigate CVE-2026-41661

Install security update from vendor's website.

Sources