[HIGH] Craft CMS: DOM XSS via GitHub issue title in CraftSupport widget

PKSA-hm4p-n9yk-nz2c CVE-2026-55790 GHSA-24x4-j6x9-rfw5

Affected package: craftcms/cms

Affected version: >=4.0.0-RC1,<4.17.15|>=5.0.0-RC1,<5.9.22

Reported by:
GitHub