CVE-2026-12517medium

CVE-2026-12517: medium-severity vulnerability in Fediverse Embeds

Fediverse Embeds < 1.5.8 - Unauthenticated SSRF via Site Info Endpoint

Published

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33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 5.3epss 0.3%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Affected products
Unknown · Fediverse Embeds
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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CVE-2026-12516MEDIUMFediverse Embeds < 1.5.8 - Unauthenticated SSRF via Media ProxyEPSS 0.3%