CVE-2026-12170
Received Received - Intake

Stored XSS in AcyMailing WordPress Plugin

Publication date: 2026-07-09

Last updated on: 2026-07-09

Assigner: Wordfence

Description
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.

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Meta Information

Published
2026-07-09
Last Modified
2026-07-09
Generated
2026-07-09
AI Q&A
2026-07-09
EPSS Evaluated
N/A
NVD
CVE-2026-12170
EUVD
EUVD-2026-42521

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
acymailing acymailing to 10.10.2 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

The vulnerability exists in the AcyMailing WordPress plugin, specifically in versions up to and including 10.10.2. It is a Stored Cross-Site Scripting (XSS) issue caused by insufficient input sanitization and output escaping of the 'alignment' attribute. Authenticated users with contributor-level access or higher can inject malicious scripts into pages, which then execute whenever those pages are accessed.

Impact Analysis

This vulnerability allows attackers with contributor-level access or above to inject arbitrary web scripts into pages. These scripts execute when other users view the infected pages, potentially leading to unauthorized actions such as session hijacking, defacement, or data theft. The CVSS score of 6.4 indicates a moderate severity with impacts on confidentiality and integrity.

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