XSS in Ateshabaev Anycomment
CVE-2026-103422
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/ce925d1c-2254-49ea-9fcf-e9488…
- plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Admin/Tables/…
- plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Rest/AnyComme…
- plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Rest/AnyComme…
- plugins.trac.wordpress.org/browser/anycomment/tags/0.3.6/includes/Models/AnyCom…
Frequently asked questions
- What is CVE-2026-103422?
- CVE-2026-103422 is a high-severity vulnerability in Ateshabaev Anycomment, classified under Cross-site Scripting. CVSS score: 7.2/10. Published 2026-10-14.
- How severe is CVE-2026-103422?
- High severity. CVSS v3 base score is 7.2 out of 10.