WordPress Plugin Vulnerabilities
GRAND FlaGallery <= 6.1.2 - Admin+ Stored Cross-Site Scripting
Description
The plugin does not sanitise and escape some of its gallery settings, which could allow high privilege users to perform Cross-Site scripting attacks even when the unfiltered_html capability is disallowed.
Proof of Concept
Create/edit a gallery and put the following payload in the "Back Button Text" setting, then publish it: "><script>alert(/XSS/)</script> The XSS will be triggered when accessing the gallery setting again, as well as in page/s where the Gallery is embed
Affects Plugins
No known fix References
CVE
Classification
Type
XSS
OWASP top 10
CWE
CVSS
Miscellaneous
Original Researcher
Tyler Miller
Submitter
Tyler Miller
Submitter twitter
Verified
Yes
WPVDB ID
Timeline
Publicly Published
2021-11-12 (about 2 years ago)
Added
2022-01-26 (about 2 years ago)
Last Updated
2022-04-13 (about 2 years ago)
WPScan 