CVE-2022-50912

ImpressCMS 1.4.4 - Unrestricted File Upload

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.

Affected

ImpressCMS

CVSS v4.0 VULNCHECK

9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULNCHECK

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

EPSS

1.22% chance of exploitation in the next 30 days, 68th percentile

Published

2026-01-13

Updated

2026-03-05

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/50890

Security advisories

• https://www.vulncheck.com/advisories/impresscms-unrestricted-file-upload
• ImpressCMS/impresscms
• https://www.impresscms.org

References

• CVE Record
• NVD entry