CVE-2026-6020 ShopLentor <= 3.3.7 - Authenticated (Administrator+) Arbitrary Function Execution via 'callback' Parameter via REST API
Administrators can execute arbitrary PHP functions via the REST API due to unsafe callback handling in the ShopLentor plugin.
- 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-2026-6020?
CVE-2026-6020 is a high-severity code injection vulnerability in devitemsllc ShopLentor – All-in-One WooCommerce Growth & Store Enhancement Plugin, published on 5 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The ShopLentor plugin for WordPress is vulnerable to arbitrary function execution via the woolentoropt/v1/custom-action REST API endpoint in all versions up to, and including, 3.3.7. This is due to the handle_action() method passing user-supplied input directly to call_user_func() without an allowlist of permitted callbacks. This makes it possible for authenticated attackers, with Administrator-level access and above, to execute arbitrary PHP callable functions via the 'callback' parameter.
Weakness: CWE-470
Which versions are affected by CVE-2026-6020?
How do I fix CVE-2026-6020?
No fix has been published for CVE-2026-6020 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-6020 being exploited?
There is no known exploitation of CVE-2026-6020 in the wild and no public exploit code.
Sources
Also known as GHSA-m4f6-5759-q864.