WordPress Plugin Vulnerabilities

NextCellent Gallery <= 1.9.35 - Admin+ Stored XSS

Description

The plugin does not sanitise and escape some of its image settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks when the unfiltered_html capability is disallowed (for example in multisite setup)

Proof of Concept

Create/edit a gallery with at least one image, put the following payload in the "Alt & Title Text" field: State of Mind"autofocus onfocus=alert(/XSS/)//

Save the changes (via the button next to the Apply button). The XSS will be triggered when editing the Gallery again

Affects Plugins

References

Classification

Type
XSS
CWE
CVSS

Miscellaneous

Original Researcher
lucy
Submitter
lucy
Verified
Yes

Timeline

Publicly Published
2022-06-06 (about 1 years ago)
Added
2022-06-06 (about 1 years ago)
Last Updated
2023-03-09 (about 1 years ago)

Other