CVE-2026-4365 LearnPress <= 4.3.2.8 - Missing Authorization to Unauthenticated Arbitrary Quiz Answer Deletion
Unauthenticated attackers can delete arbitrary quiz answers in LearnPress due to missing capability checks on the AJAX dispatcher.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4365?
CVE-2026-4365 is a critical missing authorization vulnerability in thimpress LearnPress – WordPress LMS Plugin for Create and Sell Online Courses, published on 14 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The LearnPress plugin for WordPress is vulnerable to unauthorized data deletion due to a missing capability check on the `delete_question_answer()` function in all versions up to, and including, 4.3.2.8. The plugin exposes a `wp_rest` nonce in public frontend HTML (`lpData`) to unauthenticated visitors, and uses that nonce as the only security gate for the `lp-load-ajax` AJAX dispatcher. The `delete_question_answer` action has no capability or ownership check. This makes it possible for unauthenticated attackers to delete any quiz answer option by sending a crafted POST request with a publicly available nonce.
Weakness: CWE-862
Which versions are affected by CVE-2026-4365?
How do I fix CVE-2026-4365?
No fix has been published for CVE-2026-4365 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-2026-4365 being exploited?
There is no known exploitation of CVE-2026-4365 in the wild and no public exploit code.
Sources
Also known as GHSA-fcmf-hc7m-63gh.