What’s Vulnerable › Vulnerabilities

CVE-2022-50912: ImpressCMS 1.4.4 - Unrestricted File Upload

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-01-13 · updated 2026-06-17
• Weakness: CWE-434

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.

Affected products

• ImpressCMS: 1.4.4

References

• https://github.com/ImpressCMS/impresscms
• https://www.exploit-db.com/exploits/50890
• https://www.impresscms.org/
• https://www.vulncheck.com/advisories/impresscms-unrestricted-file-upload

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