Stored XSS via file upload in GitHub repository star7th/showdoc prior to v2.10.4.
https://github.com/advisories/GHSA-mw75-qvfr-hpmr
https://huntr.dev/bounties/3eb5a8f9-24e3-4eae-a212-070b2fbc237e
https://github.com/star7th/showdoc/commit/830c89a4c2c5fd0dd491422bf8e97b4eb5713f55