CVE-2022-50912

CRITICAL 9.8

ImpressCMS 1.4.4 - Unrestricted File Upload

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

ImpressCMS 1.4.4 contains a file upload vulnerability with weak extension sanitization that allows attackers to upload potentially malicious files. Attackers can bypass file upload restrictions by using alternative file extensions .php2.php6.php7.phps.pht to execute arbitrary PHP code on the server.

CWE	CWE-434
Vendor	impresscms
Product	impresscms
Published	Jan 13, 2026
Last Updated	Mar 5, 2026

Stay Ahead of the Next One

Get instant alerts for impresscms impresscms

Be the first to know when new critical vulnerabilities affecting impresscms impresscms are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

ImpressCMS / ImpressCMS

1.4.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/50890 impresscms.org: https://www.impresscms.org/ github.com: https://github.com/ImpressCMS/impresscms vulncheck.com: https://www.vulncheck.com/advisories/impresscms-unrestricted-file-upload

Credits

Ünsal Furkan Harani (Zemarkhos)