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.

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.php6.php7.phps.pht to execute arbitrary PHP code on the server.

Vulnerability class: Unrestricted File Upload

EPSS: 0.010 (58.7th 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

Impresscms — versions 1.4.4

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

disclosure@vulncheck.com (Exploit, VDB Entry, Third Party Advisory, exploit)
disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (Product, product)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

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.