Weblate is a web based localization tool. Prior to version 5.17.1, the Markdown renderer used in user comments and other user-provided content didn't properly sanitize some attributes. This issue has been patched in version 5.17.1.
Exploitability
AV:NAC:LPR:LUI:NScope
S:UImpact
C:NI:LA:N4.3/CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NOther