What is the CVSS score of CVE-2022-50912?

CVE-2022-50912 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.2%.

Which versions of PHP are affected by CVE-2022-50912?

Organizations using ImpressCMS 1.4.4 face critical risk from CVE-2022-50912, a unrestricted file upload vulnerability rated CVSS 9.8.

Is there a public PoC exploit available for CVE-2022-50912?

Yes, a public proof-of-concept exploit is available for CVE-2022-50912. Prioritise patching immediately. EPSS: 0.2%.

How to fix or mitigate CVE-2022-50912?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Review file handling controls and restrict upload directories.

PHP CVE-2022-50912

CRITICAL

Unrestricted Upload of File with Dangerous Type (CWE-434)

2026-01-13 disclosure@vulncheck.com

PHP Impresscms

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Feb 03, 2026 - 19:26 vuln.today

Public exploit code

CVE Published

Jan 13, 2026 - 23:15 nvd

CRITICAL 9.8

DescriptionCVE.org

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.

AnalysisAI

ImpressCMS 1.4.4 has weak file upload extension filtering that can be bypassed using alternative PHP extensions (.php2, .php6, .php7, .phps, .pht). PoC available.

Technical ContextAI

The upload filter only blocks .php but not alternative PHP extensions (CWE-434). Extensions like .php7, .pht, and others are processed by Apache's PHP handler depending on configuration.

RemediationAI

Implement a whitelist of allowed extensions rather than a blacklist. Restrict PHP processing to .php only in Apache config.

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CVE-2022-50912 vulnerability details – vuln.today

Back

PHP CVE-2022-50912

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

RemediationAI

More from same product – last 7 days

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External POC / Exploit Code