CVE-2026-2736 – Reflected Cross-Site Scripting (XSS) vulnerability in Alkacon’s OpenCms

CVE ID : CVE-2026-2736

Published : Feb. 19, 2026, 8:39 a.m. | 20 minutes ago

Description : Reflected Cross-site Scripting (XSS) in Alkacon’s OpenCms v18.0, which allows an attacker to execute JavaScript code in the victim’s browser by sending the victim a malicious URL containing the ‘q’ parameter in ‘/search/index.html’. This vulnerability can be exploited to steal sensitive user information such as session cookies, or to perform actions while impersonating the user.

Severity: 5.1 | MEDIUM

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