CVE-2026-12517

Fediverse Embeds < 1.5.8 - Unauthenticated SSRF via Site Info Endpoint

Medium · published July 9, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
22.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00313 · 22.9th percentile
Published
2026-07-09T06:00Z
EPSS history
Timeline
  • 09 JUL 06:00Z
    Fediverse Embeds < 1.5.8 - Unauthenticated SSRF via Site Info Endpoint
    cvelistv5