{"id":"CVE-2026-0688","aliases":["EUVD-2026-18134","GHSA-wjf6-53j2-2f8c"],"status":"published","title":"Webmention \u003c= 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.","severity":{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00209,"percentile":0.11146,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-918"],"published":"2026-04-02T07:39:34Z","modified":"2026-10-28T02:30:56Z","products":[{"vendor":"pfefferle","product":"webmention"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/02c9beba-dfa5-4a30-8355-62ff9a2630f7?source=cve","tags":["web"]},{"url":"https://github.com/pfefferle/wordpress-webmention/blob/057223cee18a9e93b017d0f21db6ea77a7686489/includes/class-tools.php#L81","tags":["web"]},{"url":"https://plugins.trac.wordpress.org/browser/webmention/tags/5.6.2/includes/class-tools.php#L81","tags":["web"]},{"url":"https://plugins.trac.wordpress.org/changeset/3494831/webmention","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-0688","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-wjf6-53j2-2f8c"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/0xxx/CVE-2026-0688.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-0688","title":"Webmention \u003c= 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.","status":"published","published":"2026-04-02T07:39:34.999Z","modified":"2026-04-08T16:32:45.483Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:20:13.962274Z"}],"euvd":[{"id":"EUVD-2026-18134","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.","status":"published","published":"2026-04-02T07:39:34Z","modified":"2026-04-08T16:32:45Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:25:11.650607Z"}],"ghsa":[{"id":"GHSA-wjf6-53j2-2f8c","title":"The Webmention plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions...","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.","status":"published","published":"2026-04-02T09:30:24Z","modified":"2026-04-02T09:30:31Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:07:04.885246Z"}],"nvd":[{"id":"CVE-2026-0688","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.","status":"published","published":"2026-04-02T08:16:28.057Z","modified":"2026-06-17T10:11:12.503Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:12:12.73929Z"}],"osv":[{"id":"CVE-2026-0688","title":"Webmention \u003c= 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.","status":"published","published":"2026-04-02T07:39:34.999Z","modified":"2026-10-28T02:30:56.76415423Z","cvss":[{"version":"3.1","score":6.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:44:53.490346Z"}]}}