Arbitrary file upload in Impresscms

CVE-2022-50912

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.ph…

Vulnerability class: Unrestricted File Upload

EPSS: 0.010 (57.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-50912?
CVE-2022-50912 is a critical-severity vulnerability in Impresscms, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-01-13.
How severe is CVE-2022-50912?
Critical severity. CVSS v3 base score is 9.8 out of 10.