What the vulnerability does
01Description
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.
Explanation of Vulnerability in Simple Terms
02Summary
The All-in-One WP Migration Unlimited Extension versions 2.84 and earlier contain a stored cross-site scripting (XSS) vulnerability. An authenticated user with low privileges can inject malicious scripts that execute in the browsers of other site users, including administrators. The vulnerability affects the plugin's scope across the site, potentially compromising user sessions and site data.
What an attacker can do
03Attacker Capabilities
Inject malicious scripts that run in other users' browsers, potentially stealing sessions or site data.
Potential impact on your site
04Site Impact
Authenticated attackers can compromise admin sessions and inject malware visible to all site visitors.
Conditions required to exploit
05Prerequisites
Attacker must have a low-privilege WordPress account (e.g., subscriber or contributor role).
Key dates
06Disclosure timeline
August 28, 2026
CVE published
