Impact
The URL Media Uploader plugin for WordPress permits attackers who are logged in with Contributor-level privileges or higher to upload arbitrary safe media files, because the url_media_uploader_url_upload_ajax_handler() function lacks a capability check. This missing authorization allows authenticated users to place files into the site’s media library. The flaw is categorized as CWE‑862: Missing Authorization.
Affected Systems
WordPress installations that use the URL Media Uploader plugin by apprhyme. All releases up to and including version 1.0.1 are affected. Site administrators should confirm the plugin’s presence and version to assess exposure.
Risk and Exploitability
The CVSS score of 4.3 classifies the flaw as moderate severity. The EPSS score of less than 1% indicates a low probability of exploitation, and the vulnerability is not listed in CISA’s KEV catalog. Nevertheless, the attack can be performed by any authenticated user with Contributor access, so the risk level is significant for sites that grant such roles. Patching or mitigating the missing capability check will render the upload endpoint unusable by contributors.
OpenCVE Enrichment