CVE-2026-17533 All-in-One WP Migration and Backup < 7.108 - Multisite Subsite Admin+ Network-Wide PHP Code Execution via REST Import
A subsite administrator can execute arbitrary PHP code across the entire WordPress multisite network due to insufficient authorization checks in the import feature.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-17533?
CVE-2026-17533 is a high-severity missing authorization vulnerability in Unknown All-in-One WP Migration and Backup, published on 16 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The All-in-One WP Migration and Backup WordPress plugin before 7.108 does not restrict its migration import functionality to network administrators on multisite installations, allowing an administrator of a single subsite to execute arbitrary PHP code across the entire network.
Weakness: CWE-269
Which versions are affected by CVE-2026-17533?
How do I fix CVE-2026-17533?
No fix has been published for CVE-2026-17533 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-17533 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-17533 exists.
Sources
Also known as GHSA-qgjj-8h65-3vcm.