CVE-2026-104890

01/תיאור (מקור, אנגלית)

Kunstmaan CMS is an open source content management system based on the Symfony framework. Prior to 7.3.2, src/Kunstmaan/MediaBundle/Helper/File/FileHandler.php performs the blacklisted_extensions check case-sensitively in FileHandler::getFilePath and lowercases the stored extension afterward. An authenticated backend user with media access can upload a mixed-case executable extension such as PHP that bypasses the check and is stored in the web-accessible media directory with an executable lowercase extension. The default blacklist also omits several server-executable extension types, allowing the same code-execution impact where the web server executes uploaded files. This issue is fixed in version 7.3.2.

02/קישורים3

• github.com/Kunstmaan/KunstmaanBundlesCMS/commit/1bbdfdeac8e7e9‮…
• github.com/Kunstmaan/KunstmaanBundlesCMS/releases/tag/7.3.2
• github.com/Kunstmaan/KunstmaanBundlesCMS/security/advisories/G‮…