Arbitrary file upload in Webnus Modern Events Calendar
CVE-2024-5441
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 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.
Vulnerability class: Unrestricted File Upload
EPSS: 0.011 (62.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@wordfence.com (Third Party Advisory)
- security@wordfence.com (Product)
Frequently asked questions
- What is CVE-2024-5441?
- CVE-2024-5441 is a high-severity vulnerability in Webnus Modern Events Calendar, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2024-07-09.
- How severe is CVE-2024-5441?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2024-5441 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.