{"id":"CVE-2026-0688","state":"PUBLISHED","title":"Webmention <= 5.6.2 - Authenticated (Subscriber+) Server-Side Request Forgery","description":"The Webmention plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 5.6.2 via the 'Tools::read' function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services.","publishedAt":"2026-04-02T07:39:34.999Z","updatedAt":"2026-04-08T16:32:45.483Z","severity":{"score":6.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","source":"Wordfence"},"assigner":"Wordfence","products":["pfefferle Webmention"],"affected":[{"vendor":"pfefferle","product":"Webmention","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"5.6.2","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/02c9beba-dfa5-4a30-8355-62ff9a2630f7?source=cve","https://github.com/pfefferle/wordpress-webmention/blob/057223cee18a9e93b017d0f21db6ea77a7686489/includes/class-tools.php#L81","https://plugins.trac.wordpress.org/browser/webmention/tags/5.6.2/includes/class-tools.php#L81","https://plugins.trac.wordpress.org/changeset/3494831/webmention"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:10:13.529Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/0xxx/CVE-2026-0688.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-0688","state":"PUBLISHED","datePublished":"2026-04-02T07:39:34.999Z","dateUpdated":"2026-04-08T16:32:45.483Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-01-07T19:31:01.518Z"},"containers":{"cna":{"title":"Webmention <= 5.6.2 - Authenticated (Subscriber+) Server-Side Request Forgery","descriptions":[{"lang":"en","value":"The Webmention plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 5.6.2 via the 'Tools::read' function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services."}],"affected":[{"vendor":"pfefferle","product":"Webmention","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"5.6.2","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/02c9beba-dfa5-4a30-8355-62ff9a2630f7?source=cve"},{"url":"https://github.com/pfefferle/wordpress-webmention/blob/057223cee18a9e93b017d0f21db6ea77a7686489/includes/class-tools.php#L81"},{"url":"https://plugins.trac.wordpress.org/browser/webmention/tags/5.6.2/includes/class-tools.php#L81"},{"url":"https://plugins.trac.wordpress.org/changeset/3494831/webmention"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","baseScore":6.4,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918 Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-04-08T16:32:45.483Z"},"credits":[{"lang":"en","type":"finder","value":"Duong Quang Hao"}],"timeline":[{"time":"2026-01-07T19:46:32.000Z","lang":"en","value":"Vendor Notified"},{"time":"2026-04-01T19:17:16.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-02T13:23:17.279236Z","id":"CVE-2026-0688","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-02T13:32:05.134Z"}}]}}}