The SMTP by BestWebSoft plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'save_options' function in all versions up to, and including, 1.1.9. This makes it possible for authenticated attackers, with Administrator-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
CVE ID: CVE-2024-13908
CVSS Base Severity: HIGH
CVSS Base Score: 7.2
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Vendor: bestwebsoft
Product: SMTP by BestWebSoft
EPSS Score: 0.3% (probability of being exploited)
EPSS Percentile: 50.23% (scored less or equal to compared to others)
EPSS Date: 2025-04-06 (when was this score calculated)