Vulnerability · Published Jul 9, 2026 · Assigned by WPScan

CVE-2026-12517Fediverse Embeds < 1.5.8 - Unauthenticated SSRF via Site Info Endpoint

Medium 5.3

In plain English

A medium-severity security flaw in Fediverse Embeds from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.3%top 75.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

The Fediverse Embeds WordPress plugin before 1.5.8 does not validate the destination of the server-side request performed by an unauthenticated site-info endpoint before fetching it, allowing anonymous users (the gating nonce is exposed on public pages carrying an embed) to make the site request internal and private-network URLs and read back the parsed page metadata. This is a Server-Side Request Forgery.

Affected products (as reported)

VendorProductVersions
Unknown Fediverse Embeds 0 – before 1.5.8

References