CVE-2026-12170

Name of the Vulnerable Software and Affected Versions AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress versions prior to 10.10.3

Description Insufficient input sanitization and output escaping allow authenticated attackers with contributor-level access and above to perform Stored Cross-Site Scripting (XSS). This occurs via the alignment attribute, enabling the injection of arbitrary web scripts into pages that execute when accessed by other users.

Recommendations Update AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress to version 10.10.3 or later.