[MEDIUM] XSS in Flarum Sticky extension

PKSA-3mfb-hw7w-h3p5 CVE-2021-21283 GHSA-h3gg-7wx2-cq3h

Affected package: flarum/sticky

Affected version: >=0.1.0-beta.14,<=0.1.0-beta.15

Reported by:
GitHub