🛡️ CVE-2026-3242
🟡 CVSS 4.8 — Medium ⚠️ Exploit Public CWE-79 NVD
4.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In Concrete CMS below version 9.4.8, a rogue administrator can add stored XSS via the Switch Language block.  The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 4.8 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N.  Thanks M3dium for reporting.

Details

Severity MEDIUM
CVSS Score 4.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
CWE CWE-79
Public Exploit ⚠️ Yes
Source NVD
Published 2026-03-04
Updated 2026-06-02
Modified 2026-03-04

Affected Packages

Software From version Fixed in
concrete-cms 9.4.8
concrete5/concrete5 9.4.8

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