WordPress Plugin Vulnerabilities
Top Bar < 3.0.4 - Admin+ Stored Cross-Site Scripting
Description
The plugin does not sanitise and escape some of its settings before outputting them in frontend pages, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)
Proof of Concept
Put the following payload in the Content > Message settings of the plugin: <img src onerror=alert(/XSS/)> The XSS will be triggered in all frontend pages
Affects Plugins
Fixed in 3.0.4 References
CVE
Classification
Type
XSS
OWASP top 10
CWE
CVSS
Miscellaneous
Original Researcher
Asif Nawaz Minhas
Submitter
Asif Nawaz Minhas
Submitter website
Verified
Yes
WPVDB ID
Timeline
Publicly Published
2022-09-19 (about 1 years ago)
Added
2022-09-19 (about 1 years ago)
Last Updated
2022-09-19 (about 1 years ago)
WPScan 