CVE-2026-11355 Missing authorization in DT LMS – elearning, WordPress LMS Plugin
Unauthenticated attackers can modify arbitrary plugin settings via AJAX handlers due to missing capability checks, altering site appearance and behavior.
- 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-2026-11355?
CVE-2026-11355 is a medium-severity missing authorization vulnerability in designthemes DT LMS – elearning, WordPress LMS Plugin, published on 12 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The DT LMS – elearning, WordPress LMS plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on multiple AJAX handlers (including dtlms_save_poc_settings, dtlms_save_skin_settings, and dtlms_save_options_settings) in versions up to, and including, 1.1. These handlers are registered on the wp_ajax_nopriv_* hook and contain no capability check, no nonce verification, and pass user-supplied data directly to update_option(). This makes it possible for unauthenticated attackers to overwrite arbitrary plugin option values stored in the wp_options table, including Point-of-Contact email configuration and skin/branding settings, which can be used to alter the appearance and behavior of the LMS for all site visitors.
Weakness: CWE-862
Which versions are affected by CVE-2026-11355?
How do I fix CVE-2026-11355?
No fix has been published for CVE-2026-11355 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-2026-11355 being exploited?
There is no known exploitation of CVE-2026-11355 in the wild and no public exploit code.
Sources
Also known as GHSA-xcq8-9qm4-gwm6.