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.

Project Subscriptions

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Advisories

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Fixes

Solution

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Workaround

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History

Wed, 14 Oct 2026 02:45:00 +0000

Type Values Removed Values Added
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.
Title AnyComment <= 0.3.6 - Unauthenticated Stored Cross-Site Scripting via 'email' Parameter
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 7.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-10-14T02:27:38.905Z

Reserved: 2026-09-30T14:51:12.365Z

Link: CVE-2026-103422

cve-icon Vulnrichment

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cve-icon NVD

Status : Received

Published: 2026-10-14T03:17:14.037

Modified: 2026-10-14T03:17:14.037

Link: CVE-2026-103422

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses