CVE-2021-28145

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CVSS 3.1

5.4 medium

EPSS

<1%p56

Published

Mar 18, 2021 (Mar 18, 2021)

Modified

Jun 17, 2026

Description

Concrete CMS (formerly concrete5) before 8.5.5 allows remote authenticated users to conduct XSS attacks via a crafted survey block. This requires at least Editor privileges.

Vendors: concretecms
Products: concrete cms
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.9%)

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