Countly, a product analytics solution, is vulnerable to cross-site scripting prior to version 21.11 of the community edition. The victim must follow a malicious link or be redirected there from malicious web site. The attacker must have an account or be able to create one. This issue is patched in version 21.11.
github.com/Countly/countly-server/blob/6b90bb775e747cabe46fe197c6a6989acc6c3417/frontend/express/app.js#L1112
github.com/Countly/countly-server/blob/6b90bb775e747cabe46fe197c6a6989acc6c3417/frontend/express/views/reset.html#L95
github.com/Countly/countly-server/releases/tag/v21.11
securitylab.github.com/advisories/GHSL-2021-104-countly-server/