CVE-2026-116753
Deferred Deferred - Pending Action

Stored XSS in Multi Step for Contact Form 7 WordPress Plugin

Publication date: 2026-11-14

Last updated on: 2026-11-14

Assigner: Wordfence

Description
The Multi Step for Contact Form 7 plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'multipart field name (array key)' parameter in all versions up to, and including, 2.9.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Successful exploitation requires the target CF7 form to have the 'Save every step' option enabled and the Database for Contact Form 7 companion plugin to be active with its 'Expandable' table option enabled, both of which are disabled by default.

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Meta Information

Published
2026-11-14
Last Modified
2026-11-14
Generated
2026-11-15
AI Q&A
2026-11-14
EPSS Evaluated
N/A
NVD
CVE-2026-116753
EUVD
EUVD-2026-125940

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
ninjateam Multi Step for Contact Form 7 From 0 (inc) to 2.9.1 (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 is a Stored Cross-Site Scripting (XSS) issue in the Multi Step for Contact Form 7 WordPress plugin. It allows unauthenticated attackers to inject malicious scripts via the 'multipart field name (array key)' parameter due to poor input sanitization and output escaping. The attack requires the 'Save every step' option in the CF7 form to be enabled and the Database for Contact Form 7 companion plugin's 'Expandable' table option to be active, both of which are disabled by default.

Detection Guidance

This vulnerability requires specific plugin configurations to be exploitable. Check if the 'Multi Step for Contact Form 7' plugin is installed and updated beyond version 2.9.1. Inspect WordPress forms for the 'Save every step' option enabled and verify if the 'Database for Contact Form 7' plugin is active with the 'Expandable' table option enabled.

Impact Analysis

If exploited, this vulnerability could allow attackers to inject malicious scripts into pages viewed by users. This could lead to theft of session cookies, account takeovers, or defacement of the website. Users accessing infected pages may have their data compromised or be redirected to malicious sites without their knowledge.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR and HIPAA by exposing user data to unauthorized parties. GDPR requires protection of personal data, and a breach could result in fines. HIPAA mandates safeguards for protected health information, and exploitation could violate these requirements, leading to legal and financial penalties.

Mitigation Strategies

Update the 'Multi Step for Contact Form 7' plugin to the latest version. Disable the 'Save every step' option in affected forms. Deactivate the 'Database for Contact Form 7' plugin or disable its 'Expandable' table option if enabled. Monitor for suspicious scripts in form submissions or database entries.

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