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High 7.5
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/Media_Proxy.php) with permission_callback => __return_true that accepted a base64-encoded U…