CVE-2025-4102
Published: 20 June 2025
Summary
CVE-2025-4102 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Fastlinemedia Beaver Builder. Its CVSS base score is 7.2 (High).
Operationally, ranked in the top 19.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The Beaver Builder Plugin (Starter Version) for WordPress contains an arbitrary file upload vulnerability caused by missing file type validation in the save_enabled_icons function. The flaw affects all versions through 2.9.1 and is tracked under CWE-434, carrying a CVSS 3.1 score of 7.2.
Authenticated users with Administrator privileges can exploit the issue over the network to upload arbitrary files to the server, which may enable remote code execution. The vulnerability was only partially addressed in the 2.9.1 release.
The referenced Wordfence advisory and Beaver Builder change log recommend updating beyond 2.9.1 to obtain a complete fix that restores proper file-type restrictions.
The associated EPSS score has remained flat at 0.0137 with no material rise from its recorded peak, indicating no significant post-disclosure increase in exploitation interest.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-27983
Vulnerability details
The Beaver Builder Plugin (Starter Version) plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'save_enabled_icons' function in all versions up to, and including, 2.9.1. This makes it possible for authenticated attackers,…
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with Administrator-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. The vulnerability was partially patched in version 2.9.1.
- 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.