Cross-site scripting (XSS)

MEDIUM 4.8CVE-2020-17551 · GHSA-j29g-g982-pwpv · Published 07/10/2020 · updated 17/06/2026

In short

CVE-2020-17551 is a MEDIUM (CVSS 4.8) vulnerability affecting impresscms/impresscms, impresscms (impresscms).
Chance of exploitation in the next 30 days (EPSS): 1.1%, higher than 66.5% of all vulnerabilities.
Fix: update to 1.4.1 or later.

Package	Affected versions	Patched versions
impresscms/impresscms Packagist	`< 1.4.1`	`1.4.1`
impresscms impresscms	`= 1.4.0`	No fix yet

ImpressCMS 1.4.0 is affected by XSS in modules/system/admin.php which may result in arbitrary remote code execution.

NVD description

ImpressCMS 1.4.0 is affected by XSS in modules/system/admin.php which may result in arbitrary remote code execution.

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

Package

Affected versions

Patched versions

Packagist

< 1.4.1

1.4.1

= 1.4.0

No fix yet

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