CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
What the vulnerability does
The TheGem theme for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the thegem_get_logo_url() function in all versions up to, and including, 5.10.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
Explanation of Vulnerability in Simple Terms
TheGem theme versions up to 5.10.3 allow authenticated users to upload files without proper validation. An attacker with low-level site access can upload malicious files, potentially gaining control of the site. This affects confidentiality, integrity, and availability of the affected installation.
What an attacker can do
Upload malicious files to the site and execute code with site-level privileges.
Potential impact on your site
A compromised user account or plugin can lead to full site takeover, data theft, or defacement.
Conditions required to exploit
Attacker must have a low-privilege user account (e.g., subscriber or contributor role).
Key dates
External resources
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