CVE-2026-12170 MEDIUM

CVE-2026-12170: AcyMailing <= 10.10.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'alignment' Attribute

Vendor Acyba
Product AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress
Weakness CWE-79 · XSS
Published July 9, 2026
Last update July 9, 2026

CVSS base score

6.4/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

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.

Explanation of Vulnerability in Simple Terms

02Summary

AcyMailing versions up to 10.10.2 contain a cross-site scripting (XSS) vulnerability that allows authenticated users to inject malicious scripts. The vulnerability affects the plugin's scope across the WordPress site, potentially compromising data confidentiality and integrity. Site administrators should update to a version newer than 10.10.2 to remediate this issue.

What an attacker can do

03Attacker Capabilities

Inject malicious JavaScript that executes in other users' browsers and affects site functionality.

Potential impact on your site

04Site Impact

Authenticated users can inject scripts affecting other users' sessions and site data integrity.

Conditions required to exploit

05Prerequisites

Attacker must have a WordPress user account with at least subscriber-level access.

Key dates

06Disclosure timeline

July 9, 2026 CVE published
July 9, 2026 Record updated

Related vulnerabilities

08Related CVE