Concrete CMS Cross-site Scripting vulnerability

MEDIUM 5.4CVE-2023-48649 · GHSA-36fr-3wg8-q5v8 · Published 17/11/2023 · updated 17/06/2026

In short

CVE-2023-48649 is a MEDIUM (CVSS 5.4) vulnerability affecting concrete5/concrete5, concrete cms (concretecms).
Chance of exploitation in the next 30 days (EPSS): 0.59%, higher than 48.1% of all vulnerabilities.
Fix: update to 9.2.2, 8.5.13 or later.

Package	Affected versions	Patched versions
concrete5/concrete5 Packagist	`≥ 9.0.0, < 9.2.2< 8.5.13`	`9.2.28.5.13`
concrete cms concretecms	`≥ 9.0, < 9.2.2< 8.5.13`	`9.2.28.5.13`

Concrete CMS before 8.5.13 and 9.x before 9.2.2 allows stored XSS on the Admin page via an uploaded file name.

NVD description

Concrete CMS before 8.5.13 and 9.x before 9.2.2 allows stored XSS on the Admin page via an uploaded file name.

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Package

Affected versions

Patched versions

Packagist

≥ 9.0.0, < 9.2.2< 8.5.13

9.2.28.5.13

≥ 9.0, < 9.2.2< 8.5.13

9.2.28.5.13

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