CVE-2026-12170: AcyMailing <= 10.10.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'alignment' Attribute
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.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
AcyMailing (WordPress plugin)to a version that resolves this vulnerability.Fixed in 10.10.2
Event History
Frequently Asked Questions
What is the severity of CVE-2026-12170?
CVE-2026-12170 has a medium severity rating of 6.4.
How do I fix CVE-2026-12170?
To fix CVE-2026-12170, update the AcyMailing plugin to version 10.10.3 or later.
What types of attacks can exploit CVE-2026-12170?
CVE-2026-12170 can be exploited to conduct stored cross-site scripting attacks.
Which versions of AcyMailing are affected by CVE-2026-12170?
AcyMailing versions up to and including 10.10.2 are affected by CVE-2026-12170.
What is the cause of CVE-2026-12170?
CVE-2026-12170 is caused by insufficient input sanitization and output escaping related to the 'alignment' attribute.