Gogs is an open source self-hosted Git service. In application version 0.14.0+dev and prior, there is a stored cross-site scripting (XSS) vulnerability present in Gogs, which allows client-side Javascript code execution. The vulnerability is caused by the usage of a vulnerable and outdated component: pdfjs-1.4.20 under public/plugins/. This issue has been fixed for gogs.io/gogs in version 0.13.3.
https://github.com/gogs/gogs/security/advisories/GHSA-xh32-cx6c-cp4v
https://github.com/gogs/gogs/releases/tag/v0.13.3
https://github.com/gogs/gogs/commit/110117b2e5e5baa4809c819bec701e929d2d8d40