What is GHSA-9jc6-q7qm-59qj?

GHSA-9jc6-q7qm-59qj is a security advisory published by GitHub Security Advisories with Medium severity. The Fediverse Embeds WordPress plugin before 1.5.8 does not validate the destination of the...

Which CVE IDs does GHSA-9jc6-q7qm-59qj cover?

GHSA-9jc6-q7qm-59qj covers the following CVE IDs: CVE-2026-12516. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-9jc6-q7qm-59qj?

GHSA-9jc6-q7qm-59qj has a CVSS v3 base score of 5.3, published by GitHub Security Advisories.

GHSA-9jc6-q7qm-59qjMediumCVSS 5.3

The Fediverse Embeds WordPress plugin before 1.5.8 does not validate the destination of the...

Vendor

GitHub Security Advisories

Published

July 9, 2026

Last Modified

July 9, 2026

🔗 CVE IDs covered (1)

CVE-2026-12516 →

📋 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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-12516
https://wpscan.com/vulnerability/2ac80164-03b7-4966-b022-833b4194de80
https://github.com/advisories/GHSA-9jc6-q7qm-59qj