CVE-2026-12517
Medium
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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductFediverse Embeds
PublishedJul 9, 2026
First seenJul 9, 2026
Weakness typeCWE-918Server-side request forgery (SSRF)
How to fix
Update
- Fediverse Embeds1.5.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Fediverse Embeds | v < 1.5.8 | 1.5.8 |
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