CVE-2026-54611 (GCVE-0-2026-54611)
Vulnerability from cvelistv5
Published
2026-09-08 17:16
Modified
2026-09-09 17:39
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Summary
InstantCMS is a free and open source content management system. Versions prior to 2.18.2 have a Remote Code Execution (RCE) issue that allows remote authenticated attackers to execute any PHP code via the component installer. It is possible to upload a malicious component into the server, however, it won't be installed, but upload files will be executed. Normally all php files in upload folder are not executed, however, by uploading custom .htaccess it becomes possible. Version 2.18.2 contains a fix.
Impacted products
Vendor Product Version
instantsoft icms2 Version: < 2.18.2
Create a notification for this product.
Show details on NVD website


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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