CVE-2026-13353 Missing authorization in WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel
Authenticated subscribers can execute arbitrary code on the server due to missing authorization checks in the WP Ultimate CSV Importer plugin.
- 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-2026-13353?
CVE-2026-13353 is a high-severity missing authorization vulnerability in smackcoders WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel, published on 11 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The WP Ultimate CSV Importer – WordPress Import & Export for CSV, XML & Excel plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 8.0.1 via the 'MappedFields' parameter. This is due to missing capability checks on the AJAX handlers for install_addon, saveMappedFields, and StartImport, combined with the plugin nonce being exposed to any authenticated user who can load an admin page, allowing a Subscriber to install the Import WooCommerce add-on, persist attacker-controlled PHP expressions in the MappedFields parameter, and trigger evaluation via eval() in ImportHelpers::get_meta_values(). This makes it possible for authenticated attackers, with subscriber-level access and above, to execute code on the server.
Weakness: CWE-94
Which versions are affected by CVE-2026-13353?
How do I fix CVE-2026-13353?
No fix has been published for CVE-2026-13353 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-2026-13353 being exploited?
There is no known exploitation of CVE-2026-13353 in the wild and no public exploit code.
Sources
Also known as GHSA-6rrc-q62j-9g2p.