5.3
Medium
CVE-2026-12516 The Fediverse Embeds WordPress plugin before 1.5.8 does not validate the destination of the server-side request…
Description
The Fediverse Embeds WordPress plugin before 1.5.8 does not validate the destination of the server-side request performed by an unauthenticated media-proxying endpoint, allowing anonymous users to make the site fetch arbitrary URLs, including internal and private-network addresses, and read back the response body. This results in a full-read Server-Side Request Forgery and open proxy.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Fediverse Embeds 1.5 | earliest → < 1.5.8 | 1.5.8 |