CVE-2026-2712 Missing authorization in WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance
Authenticated subscribers can bypass authorization checks to modify plugin settings, delete backups, and read logs via the heartbeat handler.
- 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-2026-2712?
CVE-2026-2712 is a medium-severity missing authorization vulnerability in davidanderson WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance, published on 10 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The WP-Optimize plugin for WordPress is vulnerable to unauthorized access of functionality due to missing capability checks in the `receive_heartbeat()` function in `includes/class-wp-optimize-heartbeat.php` in all versions up to, and including, 4.5.0. This is due to the Heartbeat handler directly invoking `Updraft_Smush_Manager_Commands` methods without verifying user capabilities, nonce tokens, or the allowed commands whitelist that the normal AJAX handler (`updraft_smush_ajax`) enforces. This makes it possible for authenticated attackers, with Subscriber-level access and above, to invoke admin-only Smush operations including reading log files (`get_smush_logs`), deleting all backup images (`clean_all_backup_images`), triggering bulk image processing (`process_bulk_smush`), and modifying Smush options (`update_smush_options`).
Weakness: CWE-863
Which versions are affected by CVE-2026-2712?
How do I fix CVE-2026-2712?
No fix has been published for CVE-2026-2712 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-2026-2712 being exploited?
There is no known exploitation of CVE-2026-2712 in the wild and no public exploit code.
Sources
Also known as GHSA-v86m-gg8v-4873.