WordPress Plugin Vulnerabilities
Simple Banner < 2.10.4 - Authenticated Stored XSS
Description
The plugin does not sanitise and escape one of its settings, allowing high privilege users such as admin to use Cross-Site Scripting payload even when the unfiltered_html capability is disallowed.
Proof of Concept
Put the following payload in the Simple Banner Text setting of the plugin: <img src onerror=alert(/XSS/)> The XSS will be triggered in the plugin's settings, as well as any frontend page with the banner
Affects Plugins
Fixed in version 2.10.4
References
Classification
Miscellaneous
Original Researcher
Asif Nawaz Minhas
Submitter
Asif Nawaz Minhas
Verified
Yes
Timeline
Publicly Published
2021-07-26 (about 10 months ago)
Added
2021-07-26 (about 10 months ago)
Last Updated
2021-08-10 (about 9 months ago)