Server-side request forgery (SSRF) via unvalidated RSS feed URLs

PKSA-yx24-z15d-x2k7 CVE-2026-57232

Affected package: contao/core-bundle

Affected version: >=5.3.35,<5.3.48|>=5.4.0,<5.7.9

Reported by:
FriendsOfPHP/security-advisories