WordPress security changelog
MEDIUM CVE-2026-5502 Deferred

Tutor LMS – eLearning and online course solution: Cross-site request forgery

Tutor LMS – eLearning and online course solution is affected by cross-site request forgery. Exploitation requires an authenticated subscriber account. Exploitation relies on a signed-in privileged user submitting an attacker-controlled request. The published affected range is <= 3.9.8.

CVE / CNA score 5.3 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Tutor LMS – eLearning and online course solution
Plugin slug
tutor
Affected
<= 3.9.8
Safe version
See mitigation notes
Published
Apr 17, 2026
Weakness
CWE-862 — Missing Authorization

This CVE was published Apr 17, 2026 and is one of 46 known issues for this plugin.

What to do

Update, patch or deactivate.

No fixed release is identified. Update Tutor LMS – eLearning and online course solution when a release after 3.9.8 becomes available; until then, disable and remove it when the site's risk warrants. The official upstream changelog lists version 4.0.5, which is newer than the published affected range. Its changelog does not clearly confirm this specific fix, so it is not counted as a known-safe release.

No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to unauthorized course content manipulation in versions up to and including 3.9.8. This is due to a missing authorization check in the tutor_update_course_content_order() function. The function only validates the nonce (CSRF protection) but does not verify whether the user has permission to manage course content. The can_user_manage() authorization check only executes when the 'content_parent' parameter is present in the request. When this parameter is omitted, the function proceeds directly to save_course_content_order() which manipulates the wp_posts table without any authorization validation. This makes it possible for authenticated attackers with subscriber-level access and above to detach all lessons from any topic, move lessons between topics, and modify the menu_order of course content, effectively allowing them to disrupt the structure of any course on the site.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References

Primary and upstream sources