CVE-2021-24182
Published: April 11, 2026
Official Description
The tutor_quiz_builder_get_answers_by_question AJAX action from the Tutor LMS – eLearning and online course solution WordPress plugin before 1.8.3 was vulnerable to UNION based SQL injection that could be exploited by students.
Risk Analysis
A SQL injection vulnerability exists in the Tutor LMS – eLearning and online course solution WordPress plugin, specifically within the tutor_quiz_builder_get_answers_by_question AJAX action. This flaw can be exploited by students to access or manipulate database information. The active exploitation of this vulnerability by threat actors highlights its severity.
This vulnerability is actively exploited in the wild and is included in CISA's Known Exploited Vulnerabilities Catalog. This indicates that attackers are successfully leveraging this flaw.
Update the Tutor LMS – eLearning and online course solution WordPress plugin to version 1.8.3 or newer to patch this SQL injection vulnerability. Regularly audit database access and implement input validation where possible.
Technical Analysis
CVE-2021-24182 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2021-24182 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Affected Vendors & Products
Exploit & PoC Resources
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-24182 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1