WordPress Plugin Vulnerabilities
Custom Share Buttons with Floating Sidebar < 4.2 - Admin+ Stored XSS
Description
The plugin does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks when the unfiltered_html capability is disallowed
Proof of Concept
Put the following payload in any of the Floating Sidebar > Share on xxxx (such as Share on Facebook) settings: " autofocus onfocus=alert(/XSS/)// and save The XSS will be triggered when viewing the plugin's settings again, as well as in the frontend when the Sidebar and the related Social Share button (tick the checkboxes in the General settings) are active All settings appear to also lack sanitisation and escaping
Affects Plugins
Fixed in 4.2 References
Classification
Type
XSS
OWASP top 10
CWE
CVSS
Miscellaneous
Original Researcher
Asif Nawaz Minhas
Submitter
Asif Nawaz Minhas
Verified
Yes
WPVDB ID
Timeline
Publicly Published
2022-05-26 (about 1 years ago)
Added
2022-05-26 (about 1 years ago)
Last Updated
2023-02-21 (about 1 years ago)
WPScan 