CVE-2018-1000172
Imagely NextGEN Gallery version 2.2.30 and earlier contains a Cross Site Scripting (XSS) vulnerability in Image Alt & Title Text. This attack appears to be exploitable via a victim viewing the image in the administrator page. This vulnerability appears to have been fixed in 2.2.45.
Date published : 2018-04-30
https://fortiguard.com/zeroday/FG-VD-17-215
Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery