4images 1.9 - Remote Command Execution (RCE) Severity: High Date: January 13, 2026 Affecting: 4images 1.9 CVE: CVE-2022-50806 CWE: CWE-94 Improper Control of Generation of Code ('Code Injection') CVSS: 9.8/AV:N/AC:N/PR:N/UI:N/S:U/C:H/I:H/A:H RAL: 9.5/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N References ExploitDB-51147 Official 4images Software Download Page Credit Andrey Stoykov Description 4images 1.9 contains a remote command execution vulnerability that allows authenticated administrators to inject reverse shell code through template editing functionality. Attackers can save malicious code in the template and execute arbitrary commands by accessing a specific categories.php endpoint with a crafted cat_id parameter.