CVE-2026-12516

Fediverse Embeds < 1.5.8 - Unauthenticated SSRF via Media Proxy

Published Jul 9, 2026 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions fediverse Embeds
Vendors & Products Wordpress-extensions
Wordpress-extensions fediverse Embeds
Type Values Removed Values Added
Weaknesses CWE-918
Type Values Removed Values Added
Weaknesses CWE-918
Type Values Removed Values Added
Weaknesses CWE-918
Type Values Removed Values Added
Weaknesses CWE-918
Type Values Removed Values Added
Weaknesses CWE-918
Type Values Removed Values Added
Weaknesses CWE-918
Type Values Removed Values Added
Weaknesses CWE-918
Type Values Removed Values Added
Weaknesses CWE-918
Type Values Removed Values Added
Weaknesses CWE-918
Type Values Removed Values Added
Weaknesses CWE-918
Type Values Removed Values Added
Weaknesses CWE-918
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Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Fediverse Embeds < 1.5.8 - Unauthenticated SSRF via Media Proxy
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Jul 9, 2026, 2:46 PM
Reserved
Jun 17, 2026, 12:41 PM
Status
Deferred
Published
Jul 9, 2026, 7:16 AM
Modified
Jul 9, 2026, 4:34 PM