{"id":"CVE-2026-103422","state":"PUBLISHED","title":"AnyComment <= 0.3.6 - Unauthenticated Stored Cross-Site Scripting via 'email' Parameter","description":"The AnyComment plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'email' parameter in versions up to, and including, 0.3.6. This is due to insufficient input sanitization on the public /wp-json/anycomment/v1/subscribe REST endpoint and missing output escaping in AnyCommentSubscriptionsTable::column_default(), which returns the stored email verbatim into an HTML <td> when the subscription's user_ID does not resolve to an existing WP_User. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator accesses the AnyComment → Subscriptions admin page.","publishedAt":"2026-10-14T02:27:38.905Z","updatedAt":"2026-10-14T14:19:27.126Z","severity":{"score":7.2,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","source":"Wordfence"},"assigner":"Wordfence","products":["ateshabaev AnyComment"],"affected":[{"vendor":"ateshabaev","product":"AnyComment","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.3.6","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/ce925d1c-2254-49ea-9fcf-e948813b3f2c?source=cve","https://plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Admin/Tables/AnyCommentSubscriptionsTable.php#L107","https://plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Rest/AnyCommentRestSubscriptions.php#L124","https://plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Rest/AnyCommentRestSubscriptions.php#L59","https://plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Models/AnyCommentSubscriptions.php#L311"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/103xxx/CVE-2026-103422.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-103422","state":"PUBLISHED","datePublished":"2026-10-14T02:27:38.905Z","dateUpdated":"2026-10-14T14:19:27.126Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-09-30T14:51:12.365Z"},"containers":{"cna":{"title":"AnyComment <= 0.3.6 - Unauthenticated Stored Cross-Site Scripting via 'email' Parameter","descriptions":[{"lang":"en","value":"The AnyComment plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'email' parameter in versions up to, and including, 0.3.6. This is due to insufficient input sanitization on the public /wp-json/anycomment/v1/subscribe REST endpoint and missing output escaping in AnyCommentSubscriptionsTable::column_default(), which returns the stored email verbatim into an HTML <td> when the subscription's user_ID does not resolve to an existing WP_User. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever an administrator accesses the AnyComment → Subscriptions admin page."}],"affected":[{"vendor":"ateshabaev","product":"AnyComment","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.3.6","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/ce925d1c-2254-49ea-9fcf-e948813b3f2c?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Admin/Tables/AnyCommentSubscriptionsTable.php#L107"},{"url":"https://plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Rest/AnyCommentRestSubscriptions.php#L124"},{"url":"https://plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Rest/AnyCommentRestSubscriptions.php#L59"},{"url":"https://plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Models/AnyCommentSubscriptions.php#L311"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N","baseScore":7.2,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-10-14T02:27:38.905Z"},"credits":[{"lang":"en","type":"finder","value":"Kevin Whelan"}],"timeline":[{"time":"2026-10-13T14:19:11.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-14T14:19:18.150325Z","id":"CVE-2026-103422","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":"2026-10-14T14:19:27.126Z"}}]}}}