What is CVE-2026-12517?

CVE-2026-12517 is a medium-severity vulnerability in Fediverse Embeds, classified under CWE-918 SERVER-SIDE REQUEST FORGERY (SSRF). CVSS score: 5.3/10. Published 2026-07-09.

How severe is CVE-2026-12517?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Fediverse Embeds

CVE-2026-12517

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…

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Unknown Fediverse Embeds — versions 0

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-12517?: CVE-2026-12517 is a medium-severity vulnerability in Fediverse Embeds, classified under CWE-918 SERVER-SIDE REQUEST FORGERY (SSRF). CVSS score: 5.3/10. Published 2026-07-09.
How severe is CVE-2026-12517?: Medium severity. CVSS v3 base score is 5.3 out of 10.