CVE-2026-6128 Cross-site scripting in All-in-One WP Migration Unlimited Extension
Authenticated attackers can inject scripts into the plugin settings page, potentially compromising administrator accounts.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-6128?
CVE-2026-6128 is a medium-severity cross-site scripting vulnerability in servmask All-in-One WP Migration Unlimited Extension, published on 28 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-6128?
How do I fix CVE-2026-6128?
No fix has been published for CVE-2026-6128 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-6128 being exploited?
There is no known exploitation of CVE-2026-6128 in the wild and no public exploit code.
Sources
Also known as GHSA-vh38-jq6h-xh79.