CVE-2026-46697 Details
Description
Fediverse Embeds embeds fediverse posts on WordPress sites. Prior to version 1.5.8, Fediverse Embeds registered an unauthenticated REST route ftf/media-proxy (includes/Media_Proxy.php) with permission_callback => __return_true that accepted a base64-encoded URL and forwarded it to wp_remote_get($url) without enforcing any allowlist. The plugin's source contained a comment block explicitly acknowledging that the request should be validated against allowed fediverse domains, but in 1.5.7 the validation only set a local $can_download_media flag that was never read. The full response body was echoed back to the caller, so this was a full-read SSRF / open proxy reachable by any anonymous visitor. This issue has been patched in version 1.5.8.
A vulnerability allowing unauthenticated server-side request forgery (SSRF) has been identified in the Fediverse Embeds WordPress plugin, prior to version 1.5.8. The issue arises from a REST route 'ftf/media-proxy' that was registered without proper authentication or validation. This endpoint accepted base64-encoded URLs, which were forwarded to 'wp_remote_get' without any allowlist enforcement. Although the plugin's source included a comment about validating requests against allowed fediverse domains, the implemented check in version 1.5.7 was ineffective. As a result, the endpoint acted as an open proxy, accessible to any anonymous visitor, and could be exploited to read internal response bodies from requested URLs.
Users are advised to update the Fediverse Embeds WordPress plugin to version 1.5.8 or later, where this vulnerability has been patched.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jun 11, 2026CISA-ADP
Assessed Jun 11, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/stefanbohacek/fediverse-embeds-wordpress-plugin/commit/2f021faf4dadaccef67eda7b81a0b7ceaef450df | [email protected] | Source CodeVendor |
| https://github.com/stefanbohacek/fediverse-embeds-wordpress-plugin/security/advisories/GHSA-mpq6-hjh3-m543 | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-918 | Server-Side Request Forgery (SSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Fediverse Embeds | <= 1.5.7 (semver) |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 11, 2026 | New CVE Received | [email protected] |