CVE-2026-4365: CWE-862 Missing Authorization in thimpress LearnPress – WordPress LMS Plugin for Create and Sell Online Courses
The LearnPress WordPress plugin up to version 4. 3. 2. 8 contains a critical vulnerability (CVE-2026-4365) due to missing authorization checks in the delete_question_answer() function. An unauthenticated attacker can exploit a publicly exposed wp_rest nonce in frontend HTML to send crafted POST requests to delete any quiz answer option without proper capability or ownership verification. This results in unauthorized data deletion with high impact on integrity and availability.
AI Analysis
Technical Summary
CVE-2026-4365 is a critical missing authorization vulnerability (CWE-862) in the LearnPress WordPress LMS plugin for creating and selling online courses. The vulnerability arises because the delete_question_answer() function lacks any capability or ownership checks. The plugin exposes a wp_rest nonce in public frontend HTML (lpData), which unauthenticated visitors can access. This nonce is the sole security mechanism for the lp-load-ajax AJAX dispatcher. Consequently, attackers can craft POST requests using the publicly available nonce to delete quiz answer options arbitrarily. The vulnerability affects all versions up to and including 4.3.2.8. No official patch or remediation is currently documented.
Potential Impact
Successful exploitation allows unauthenticated attackers to delete quiz answer options arbitrarily, causing integrity and availability impacts on the affected LearnPress plugin data. There is no confidentiality impact reported. The CVSS 3.1 base score is 9.1 (critical), reflecting network attack vector, no privileges required, no user interaction, and high impact on integrity and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the affected plugin or disable the vulnerable functionality if possible. Monitor for updates from the vendor thimpress regarding patches or official mitigations. Avoid relying solely on the exposed nonce for security controls.
CVE-2026-4365: CWE-862 Missing Authorization in thimpress LearnPress – WordPress LMS Plugin for Create and Sell Online Courses
Description
The LearnPress WordPress plugin up to version 4. 3. 2. 8 contains a critical vulnerability (CVE-2026-4365) due to missing authorization checks in the delete_question_answer() function. An unauthenticated attacker can exploit a publicly exposed wp_rest nonce in frontend HTML to send crafted POST requests to delete any quiz answer option without proper capability or ownership verification. This results in unauthorized data deletion with high impact on integrity and availability.
CVSS v3.1
Score 9.1critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-4365 is a critical missing authorization vulnerability (CWE-862) in the LearnPress WordPress LMS plugin for creating and selling online courses. The vulnerability arises because the delete_question_answer() function lacks any capability or ownership checks. The plugin exposes a wp_rest nonce in public frontend HTML (lpData), which unauthenticated visitors can access. This nonce is the sole security mechanism for the lp-load-ajax AJAX dispatcher. Consequently, attackers can craft POST requests using the publicly available nonce to delete quiz answer options arbitrarily. The vulnerability affects all versions up to and including 4.3.2.8. No official patch or remediation is currently documented.
Potential Impact
Successful exploitation allows unauthenticated attackers to delete quiz answer options arbitrarily, causing integrity and availability impacts on the affected LearnPress plugin data. There is no confidentiality impact reported. The CVSS 3.1 base score is 9.1 (critical), reflecting network attack vector, no privileges required, no user interaction, and high impact on integrity and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict access to the affected plugin or disable the vulnerable functionality if possible. Monitor for updates from the vendor thimpress regarding patches or official mitigations. Avoid relying solely on the exposed nonce for security controls.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2026-03-17T20:45:25.774Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69dd9c8b82d89c981fa11934
Added to database: 4/14/2026, 1:46:51 AM
Last enriched: 4/21/2026, 6:22:43 AM
Last updated: 5/28/2026, 10:40:00 PM
Views: 1379
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.