WordPress Plugin Vulnerabilities
Bit Form < 1.9 - RCE via Unauthenticated Arbitrary File Upload
Description
The plugin does not validate the file types uploaded via it's file upload form field, allowing unauthenticated users to upload arbitrary files types such as PHP or HTML files to the server, leading to Remote Code Execution.
Proof of Concept
As an unauthenticated user access a form containing a File Upload form. Upload a malicious html file (containing a malicious js for example) named after an image file, for example, and intercept the request. Change the filename's extension in the request to html and forward the request. The malicious HTML will be available on the uploads directory.
Affects Plugins
Fixed in 1.9 References
CVE
Miscellaneous
Original Researcher
Felipe Restrepo Rodríguez
Submitter
Felipe Restrepo Rodríguez
Submitter website
Submitter twitter
Verified
Yes
WPVDB ID
Timeline
Publicly Published
2023-04-19 (about 1 years ago)
Added
2023-04-19 (about 1 years ago)
Last Updated
2023-04-19 (about 1 years ago)
WPScan 