Opt-In Downloads: Dangerous file upload
Opt-In Downloads is affected by dangerous file upload. Exploitation requires at least subscriber-level access. Successful exploitation can place attacker-controlled executable content on the server and may lead to full site compromise.
- Component
- Opt-In Downloads
- Plugin slug
opt-in-downloads- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Dec 12, 2024
This CVE was published Dec 12, 2024 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update Opt-In Downloads to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Opt-In Downloads plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the admin_upload() function in all versions up to, and including, 4.07. 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. Due to the presence of an .htaccess file, this can only be exploited to achieve RCE on NGINX servers, unless another vulnerability is present.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H