--- id: CVE-2026-103422 title: >- 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 summary: >- 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/subsc… severity: high cvss: 7.2 cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N' cwe: - CWE-79 published: '2026-10-14' updated: '2026-10-14' sourceUpdated: '2026-10-14T03:17:14.037' source: NVD sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-103422' references: - url: >- https://plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Admin/Tables/AnyCommentSubscriptionsTable.php#L107 label: security@wordfence.com - url: >- https://plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Models/AnyCommentSubscriptions.php#L311 label: security@wordfence.com - url: >- https://plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Rest/AnyCommentRestSubscriptions.php#L124 label: security@wordfence.com - url: >- https://plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Rest/AnyCommentRestSubscriptions.php#L59 label: security@wordfence.com - url: >- https://www.wordfence.com/threat-intel/vulnerabilities/id/ce925d1c-2254-49ea-9fcf-e948813b3f2c?source=cve label: security@wordfence.com tags: - nvd ingestedAt: '2026-10-14T04:12:54.302Z' --- ## Overview 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 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. ## Remediation Refer to the linked advisories for vendor-supplied fixes and affected version ranges.