WordPress Plugin Vulnerabilities

WP Post Popup <= 3.7.3 - Admin+ Stored XSS

Description

The plugin does not sanitise and escape some of its inputs, 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

Enter the following payload in the Close Button field in the plugin settings.

`<img src=s onerror=alert("XSS")>`

Save the settings and visit the homepage to see the XSS.

Affects Plugins

No known fix

References

Classification

Type
XSS
CWE
CVSS

Miscellaneous

Original Researcher
Abhijith A
Submitter
Abhijith A
Submitter twitter
Verified
Yes

Timeline

Publicly Published
2023-10-27 (about 6 months ago)
Added
2023-10-27 (about 6 months ago)
Last Updated
2023-10-27 (about 6 months ago)

Other