CVE-2026-6128
Deferred Deferred - Pending Action

Stored XSS in All-in-One WP Migration Unlimited Extension

Publication date: 2026-08-28

Last updated on: 2026-08-28

Assigner: Wordfence

Description
The All-in-One WP Migration Unlimited Extension plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'ai1wm_backups_path' parameter in all versions up to, and including, 2.84. This is due to insufficient input sanitization and output escaping on user-supplied attributes combined with missing authorization checks on the settings() function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever an administrator accesses the plugin settings page. The vulnerability was partially patched in version 2.84.

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Meta Information

Published
2026-08-28
Last Modified
2026-08-28
Generated
2026-09-17
AI Q&A
2026-08-28
EPSS Evaluated
2026-09-15
NVD
CVE-2026-6128
EUVD
EUVD-2026-67648

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
servmask all-in-one_wp_migration_unlimited_extension to 2.84 (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

This is a Stored Cross-Site Scripting (XSS) vulnerability in the All-in-One WP Migration Unlimited Extension WordPress plugin. It exists due to insufficient input sanitization and output escaping in the 'ai1wm_backups_path' parameter. Attackers with Subscriber-level access or higher can inject malicious scripts that execute when an administrator views the plugin settings page.

Detection Guidance

Check if the All-in-One WP Migration Unlimited Extension plugin is installed and verify its version. If it is version 2.84 or lower, the system is vulnerable. Look for unauthorized script injections in plugin settings pages or user-supplied attributes.

Impact Analysis

An attacker could steal sensitive information like session cookies or login credentials by injecting malicious scripts. They might also perform actions on behalf of the administrator, such as changing plugin settings or creating unauthorized backups.

Compliance Impact

This vulnerability could lead to unauthorized access to personal data, violating GDPR and HIPAA requirements for data protection and access controls. Organizations may face compliance penalties if exploited.

Mitigation Strategies

Update the All-in-One WP Migration Unlimited Extension plugin to the latest version, which partially patches the vulnerability. Ensure input sanitization and output escaping are properly implemented. Restrict Subscriber-level access to prevent unauthorized script injections.

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