Impact
The Pixabay Images plugin for WordPress allows authenticated users with Author or higher access to upload arbitrary files because the pixabay_upload function lacks file type validation. The missing validation permits malicious files, including scripts, to be stored on the web server, which could lead to remote code execution. This is a classic example of CWE-434.
Affected Systems
Byrev’s Pixabay Images plugin for WordPress, versions up to and including 3.4, is vulnerable. Any site using a WordPress installation with this plugin version is at risk.
Risk and Exploitability
The vulnerability carries a CVSS score of 8.8, indicating high severity, and an EPSS score of 1%, reflecting a moderate likelihood of exploitation. It is not listed in CISA’s KEV catalog. Authenticated attackers exploiting this flaw would likely do so via normal WordPress login as an Author or higher role, after which they can upload malicious files to trigger code execution.
OpenCVE Enrichment
EUVD