CVE-2026-12170
MediumCVSS 6.4Exploitation Probability (EPSS)
Low risk17th percentile - higher than 17% of all known CVEs
Summary
The AcyMailing plugin for WordPress up to version 10.10.2 is vulnerable to Stored Cross-Site Scripting via the 'alignment' attribute due to insufficient input sanitization and output escaping. Authenticated attackers with contributor-level access or higher can inject arbitrary web scripts that execute whenever a user accesses an injected page.
Risk Assessment
The risk includes potential session hijacking, data theft, or malware distribution through script execution in the victim's browser context.
Recommendation
Immediately update the AcyMailing plugin to the latest available version that fixes this vulnerability, and restrict user permissions to the minimum necessary.
Other vulnerabilities in AcyMailing
See all- CVE-2026-102562High
The AcyMailing plugin for WordPress in versions up to and including 11.1.0 is vulnerable to Stored Cross-Site Scripting via the customField[] parameter of the public frontusers::subscribe endpoint. The acym_cleanVar() sanitizer only strips complete HTML tags, and SubscriberInsertion::replaceUserInformation() together with the archive view template insert the stored subscriber field value into the mail body without HTML encoding. This allows an unauthenticated attacker to inject arbitrary scripts that execute when the online-archive URL for the poisoned subscriber is accessed.
- CVE-2026-77807High
The AcyMailing plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 11.0.4 via the `user[name]` parameter. This allows unauthenticated attackers to read arbitrary files on the server. Exploitation requires the "Embed images" option to be enabled.
- CVE-2026-15426High
The AcyMailing plugin for WordPress up to version 10.11.1 has an authorization bypass vulnerability. An authenticated attacker with subscriber-level access can overwrite the BCC field of the acy_notification_cms notification template, causing WordPress password reset emails, including those for administrators, to be silently copied to an attacker-controlled address, enabling account takeover.
- CVE-2026-56292High
A SQL Injection vulnerability in the AcyMailing extension for Joomla versions below 10.11.1 allows unauthorized database access and data leakage.
Original NVD description (English source)
The AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'alignment' attribute in all versions up to, and including, 10.10.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS