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TI-2026-34327 Aliases CVE-2026-46698

Fediverse Embeds: Public-nonce SSRF via ftf_get_site_info AJAX action

Priority MEDIUM 63CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.

Summary

Fediverse Embeds embeds fediverse posts on WordPress sites. Prior to version 1.5.9, Fediverse Embeds registered the unauthenticated AJAX action wp_ajax_nopriv_ftf_get_site_info (includes/Site_Info.php) that verified a nonce ftf-fediverse-embeds-nonce and then called file_get_html($site_url) on the attacker-supplied URL. The same nonce was enqueued onto every public page containing a fediverse embed (via includes/Enqueue_Assets.php lines 41-46 + includes/Helpers.php lines 64-83), so the nonce gate was not an authentication boundary; any visitor of a public post with an embed could grab it and reuse it. This issue has been patched in version 1.5.9.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00229 13th percentileScored 2026-11-07
Fix Fixed fediverse-embeds-wordpress-plugin (stefanbohacek): 1.5.9

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
stefanbohacekfediverse-embeds-wordpress-pluginbefore 1.5.91.5.9Patch availableCNA
  • fediverse-embeds-wordpress-plugin Vendorstefanbohacek Affected before 1.5.9 Fixed in 1.5.9 Patch available CNA

Remediation

  • Fix · CNA fediverse-embeds-wordpress-plugin (stefanbohacek) Fixed in 1.5.9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-46698

References

Other 2

  • TI-2024-35147 WordPress Fediverse Embeds plugin <= 1.5.3 - Arbitrary File Upload vulnerability CVSS 3.1CRITICAL 10.0
  • TI-2026-34326 Fediverse Embeds: Unauthenticated SSRF / open proxy via REST media-proxy endpoint CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences