The Popup Manager WordPress plugin through 1.6.6 does not have authorisation and CSRF check when creating/updating popups, and is missing sanitisation as well as escaping, which could allow unauthenticated attackers to create arbitrary popups and add Stored XSS payloads as well
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Check my exposure →This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.