CVE-2026-46697 Fediverse Embeds: Unauthenticated SSRF / open proxy via REST media-proxy endpoint

Fediverse Embeds embeds fediverse posts on WordPress sites. Prior to version 1.5.8, Fediverse Embeds registered an unauthenticated REST route ftf/media-proxy includes/MediaProxy.php with permissioncallback = returntrue that accepted a base64-encoded URL and forwarded it to wpremoteget$url without...