The plugin did not properly sanitise the gallery title, allowing high privilege users to create one with XSS payload in it, which will be triggered when another user will view the gallery list or the affected gallery in the admin dashboard. This is due to an incomplete fix of CVE-2019-16117
Create or edit a gallery and use the below payload as the gallery title " style="animation-name:rotation" onanimationstart="alert(/XSS/)
2021-05-12 (about 2 years ago)
2021-05-12 (about 2 years ago)
2021-05-13 (about 2 years ago)