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THREAT OPS › Threat News › [NVD] CVE-2026-15052 (HIGH 7.2) — The MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Form Field Values in all versions up to, and including, 4.3.3 due to insufficient input sanitization and output escaping. This makes it p

[NVD] CVE-2026-15052 (HIGH 7.2) — The MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Form Field Values in all versions up to, and including, 4.3.3 due to insufficient input sanitization and output escaping. This makes it p

mednvdPublished 2026-08-01

CVE-2026-15052 CVSS: 7.2 HIGH Published: 2026-08-01T09:16:58.893

The MailChimp Subscribe Form, Optin Builder, PopUp Builder, Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via Form Field Values in all versions up to, and including, 4.3.3 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitr

Indicators of compromise

CVE-2026-15052cve

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-15052