CVE-2024-5441
Published: 09 July 2024
Summary
CVE-2024-5441 is a high-severity Unrestricted Upload of File with Dangerous Type (CWE-434) vulnerability in Webnus Modern Events Calendar. Its CVSS base score is 8.8 (High).
Operationally, ranked in the top 4.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The Modern Events Calendar plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the set_featured_image function. This affects all versions up to and including 7.11.0 and is tracked as CWE-434. The flaw allows files to be written to the server without proper restrictions, carrying a CVSS 3.1 score of 8.8.
Authenticated attackers with subscriber privileges or higher can upload arbitrary files, which may lead to remote code execution. The plugin's optional setting that permits unauthenticated users to submit events can extend the same capability to unauthenticated attackers.
The EPSS score rose from lower values to a peak of 0.2563 on 2025-12-11 before receding to the current 0.1969, indicating a period of increased exploitation interest after public disclosure. No further details on patches or real-world exploitation are provided in the available references.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-46662
Vulnerability details
The Modern Events Calendar plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the set_featured_image function in all versions up to, and including, 7.11.0. This makes it possible for authenticated attackers, with subscriber…
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access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible. The plugin allows administrators (via its settings) to extend the ability to submit events to unauthenticated users, which would allow unauthenticated attackers to exploit this vulnerability.
- 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.