The Video Downloader professional extension before 2018-04-05 for Chrome has Universal XSS (UXSS) via vectors related to a link64_msgAddLinks event.
https://bugs.chromium.org/p/project-zero/issues/detail?id=1555
Source: Mitre, NVD
Published: 2018-04-11
Updated: 2026-06-17
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 6.1
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS: 0.00223