How to fix CVE-2025-13974?

Within 30 days: Identify affected systems running for WordPress is vulnerable to Stored Cross-Site Scripting v and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Is WordPress affected by CVE-2025-13974?

Organizations using Email Customizer for WooCommerce should be aware of moderate risk from CVE-2025-13974, a cross-site scripting vulnerability rated CVSS 4.4. Attackers could inject scripts to steal sessions or perform actions as authenticated users.

CVE-2025-13974

MEDIUM

2026-01-07 [email protected]

4.4

CVSS 3.1

CVSS Vector

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

CVE Published

Jan 07, 2026 - 12:16 nvd

MEDIUM 4.4

Description

The Email Customizer for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via email template content in all versions up to, and including, 2.6.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in email templates that will execute when customers view transactional emails. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Analysis

Email Customizer for WooCommerce (WordPress plugin) is affected by cross-site scripting (xss) (CVSS 4.4).

Technical Context

This vulnerability (CWE-79: Cross-site Scripting (XSS)) affects Email Customizer for WooCommerce (WordPress plugin). The Email Customizer for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via email template content in all versions up to, and including, 2.6.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access, to inject arbitrary web scripts in email templates that will execute when customers view transactional emails. This only affects multi-site installations and installations where unf

Affected Products

Vendor: WordPress. Product: Email Customizer for WooCommerce (WordPress plugin).

Remediation

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.0

CVSS: +22

POC: 0

CVE-2025-13974 vulnerability details – vuln.today

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CVE-2025-13974

CVSS Vector

Lifecycle Timeline

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Description

Analysis

Technical Context

Affected Products

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CVE-2025-13974

CVSS Vector

Lifecycle Timeline

Tags

Description

Analysis

Technical Context

Affected Products

Remediation

Priority Score

Share

External POC / Exploit Code