WordPress Plugin Vulnerabilities
You Shang <= 1.0.1 - Authenticated Stored Cross-Site Scripting
Description
The plugin does not escape its qrcode links settings, which result into Stored Cross-Site Scripting issues in frontend posts and the plugins settings page depending on the payload used
Proof of Concept
Put the following payload in the wechat_qrcode settings of the plugin: http://127.0.0.1/"onerror=alert(/XSS/)// and the XSS will be triggered in all frontend posts The following payload could also be used to only trigger in the plugin's settings page: " style=animation-name:rotation onanimationstart=alert(/XSS/)//
Affects Plugins
No known fix - plugin closed
References
Classification
Miscellaneous
Original Researcher
Submitter
Verified
Yes
Timeline
Publicly Published
2021-07-30 (about 1 years ago)
Added
2021-08-19 (about 1 years ago)
Last Updated
2022-04-09 (about 8 months ago)