CVE-2026-46698 Fediverse Embeds: Public-nonce SSRF via ftf_get_site_info AJAX action
An unauthenticated attacker can exploit a public nonce to trigger Server-Side Request Forgery in the Fediverse Embeds WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-46698?
CVE-2026-46698 is a medium-severity server-side request forgery vulnerability in stefanbohacek fediverse-embeds-wordpress-plugin, published on 11 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-918
Which versions are affected by CVE-2026-46698?
How do I fix CVE-2026-46698?
No fix has been published for CVE-2026-46698 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-46698 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46698 exists.
Sources
Also known as GHSA-cr42-rgq6-whjh.