CVE-2022-50912

Name: CVE-2022-50912
Creator: NVD / NIST
Published: 2026-01-13T23:15:54.35+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.3/10EPSS 0.98%

Last modified Jun 17, 2026

CVE-2022-50912 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. 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.. EPSS estimates a 0.98% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

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

CVSS 4.0

9.3/10

CVSS: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

EPSS Probability

0.98%

57.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-434

Affected Software

Vendor	Product	Versions
Impresscms	Impresscms	1.4.4

References

https://github.com/ImpressCMS/impresscmsProduct
https://www.exploit-db.com/exploits/50890Exploit, Third Party Advisory, VDB Entry
https://www.impresscms.org/Product
https://www.vulncheck.com/advisories/impresscms-unrestricted-file-uploadThird Party Advisory

Timeline

Published: Jan 13, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2022-50912?

How severe is CVE-2022-50912?

CVE-2022-50912 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 0.98% probability of exploitation in the next 30 days.

How do I fix CVE-2022-50912?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-50912?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST