{"id":"CVE-2026-46697","state":"PUBLISHED","title":"Fediverse Embeds: Unauthenticated SSRF / open proxy via REST media-proxy endpoint","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 $can_download_media flag that was never read. The full response body was echoed back to the caller, so this was a full-read SSRF / open proxy reachable by any anonymous visitor. This issue has been patched in version 1.5.8.","publishedAt":"2026-06-11T17:16:03.883Z","updatedAt":"2026-06-11T18:58:07.518Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["stefanbohacek fediverse-embeds-wordpress-plugin"],"affected":[{"vendor":"stefanbohacek","product":"fediverse-embeds-wordpress-plugin","versions":[{"version":"< 1.5.8","status":"affected"}]}],"references":["https://github.com/stefanbohacek/fediverse-embeds-wordpress-plugin/security/advisories/GHSA-mpq6-hjh3-m543","https://github.com/stefanbohacek/fediverse-embeds-wordpress-plugin/commit/2f021faf4dadaccef67eda7b81a0b7ceaef450df"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/46xxx/CVE-2026-46697.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46697","state":"PUBLISHED","datePublished":"2026-06-11T17:16:03.883Z","dateUpdated":"2026-06-11T18:58:07.518Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-15T23:26:58.308Z"},"containers":{"cna":{"title":"Fediverse Embeds: Unauthenticated SSRF / open proxy via REST media-proxy endpoint","descriptions":[{"lang":"en","value":"Fediverse Embeds embeds fediverse posts on WordPress sites. Prior to version 1.5.8, Fediverse Embeds registered an unauthenticated REST route ftf/media-proxy (includes/Media_Proxy.php) with permission_callback => __return_true that accepted a base64-encoded URL and forwarded it to wp_remote_get($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."}],"affected":[{"vendor":"stefanbohacek","product":"fediverse-embeds-wordpress-plugin","versions":[{"version":"< 1.5.8","status":"affected"}]}],"references":[{"url":"https://github.com/stefanbohacek/fediverse-embeds-wordpress-plugin/security/advisories/GHSA-mpq6-hjh3-m543","name":"https://github.com/stefanbohacek/fediverse-embeds-wordpress-plugin/security/advisories/GHSA-mpq6-hjh3-m543","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/stefanbohacek/fediverse-embeds-wordpress-plugin/commit/2f021faf4dadaccef67eda7b81a0b7ceaef450df","name":"https://github.com/stefanbohacek/fediverse-embeds-wordpress-plugin/commit/2f021faf4dadaccef67eda7b81a0b7ceaef450df","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-06-11T17:16:03.883Z"},"source":{"advisory":"GHSA-mpq6-hjh3-m543","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-11T18:57:52.707939Z","id":"CVE-2026-46697","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-11T18:58:07.518Z"}}]}}}