Filter: gk/block-mcp/media/sideload-blocked-ipv6-cidrs

Adjust which IPv6 ranges are off-limits when sideloading from a URL.

The IPv6 companion to the SSRF guard: it blocks loopback, unique-local, link-local, IPv4-mapped, and other reserved IPv6 space before any remote fetch, so a malicious URL can't reach your internal services over IPv6. Add your own CIDRs to extend the block list to ranges specific to your network. Values are standard CIDR strings (e.g. fc00::/7).

Parameters

Name	Type	Description
$v6_cidrs	array<int,string>	Blocked IPv6 ranges as CIDR strings.

Example

// Block an additional internal IPv6 prefix.

add_filter( 'gk/block-mcp/media/sideload-blocked-ipv6-cidrs', function ( $cidrs ) {
    $cidrs[] = '2001:db8::/32';
    return $cidrs;
} );

Since

• 2.0.0

Source

Defined in wordpress-plugin/gk-block-api/includes/class-media-manager.php at line 649