CVE-2024-3242
Published: 18 July 2024
Summary
CVE-2024-3242 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Brizy Brizy. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 8.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The Brizy Page Builder plugin for WordPress is affected by an arbitrary file upload vulnerability in all versions through 2.4.43. The flaw stems from missing file extension validation inside the validateImageContent function invoked by storeImages, which permits upload of files with dangerous extensions. The issue is tracked as CWE-434 and carries a CVSS 3.1 score of 8.8.
Authenticated users holding contributor-level access or higher can exploit the weakness over the network to place arbitrary files on the server, enabling remote code execution in many hosting configurations. No user interaction is required once the attacker has a valid account with the necessary role.
The vendor addressed the problem in successive releases: version 2.4.44 blocks files ending in .sh and .php, while 2.4.45 implements a complete fix. Public references include the plugin's source repository changesets and the Wordfence advisory that detail the affected code paths and remediation steps.
EPSS remains flat at 0.0663 with no material increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-31834
Vulnerability details
The Brizy – Page Builder plugin for WordPress is vulnerable to arbitrary file uploads due to missing file extension validation in the validateImageContent function called via storeImages in all versions up to, and including, 2.4.43. This makes it possible for…
more
authenticated attackers, with contributor access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. Version 2.4.44 prevents the upload of files ending in .sh and .php. Version 2.4.45 fully patches the issue.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.
Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.
Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.
Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.