CVE-2021-41465

PoC —

CVSS 3.1

6.1 medium

EPSS

<1%p56

Published

Oct 1, 2021 (Oct 1, 2021)

Modified

Jun 17, 2026

Description

Cross-site scripting (XSS) vulnerability in concrete/elements/collection_theme.php in concrete5-legacy 5.6.4.0 and below allows remote attackers to inject arbitrary web script or HTML via the rel parameter.

Vendors: concrete5-legacy project
Products: concrete5-legacy
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.8%)

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