WordPress security changelog
MEDIUM CVE-2024-8538 Analyzed

Big File Uploads – Increase Maximum File Upload Size: A security weakness

Big File Uploads – Increase Maximum File Upload Size is affected by a security weakness. Exploitation requires at least author-level access. The resulting impact depends on how the affected component exposes the vulnerable operation.

CVE / CNA score 4.3 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Big File Uploads – Increase Maximum File Upload Size
Plugin slug
big-file-uploads
Affected
See vendor advisory
Safe version
See mitigation notes
Published
Sep 07, 2024
Weakness
CWE-200 — Exposure of Sensitive Information to an Unauthorized Actor
CWE-22 — Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

This CVE was published Sep 07, 2024 and is one of 1 known issue for this plugin.

Update, patch or deactivate.

Update Big File Uploads – Increase Maximum File Upload Size 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 Big File Uploads – Increase Maximum File Upload Size plugin for WordPress is vulnerable to Full Path Disclosure in all versions up to, and including, 2.1.2. This is due the plugin not sanitizing a file path in an error message. This makes it possible for authenticated attackers, with author-level access and above, to retrieve the full path of the web application, which can be used to aid other attacks. The information displayed is not useful on its own, and requires another vulnerability to be present for damage to an affected website.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Primary and upstream sources