PT-2026-87192 · Git+1 · Icms2
CVE-2026-54611
·
Published
2026-09-08
·
Updated
2026-09-08
CVSS v3.1
5.5
Medium
| Vector | AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H |
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.
Exploit
Fix
Unrestricted File Upload
Code Injection
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Related Identifiers
Affected Products
Icms2