Skip to main content

Tutor Lms CVE-2021-24181

MEDIUM
SQL Injection (CWE-89)
2021-04-05 contact@wpscan.com
6.5
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Parameterized queries, prepared statements
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Persistence

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 6.5 (MEDIUM). Attack characteristics: network attack vector, low complexity, low privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

A remote attacker could execute arbitrary SQL commands against the database by sending crafted requests to the affected application.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 1.3% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

The tutor_mark_answer_as_correct AJAX action from the Tutor LMS - eLearning and online course solution WordPress plugin before 1.7.7 was vulnerable to blind and time based SQL injections that could. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use parameterized queries/prepared statements. Never concatenate user input into SQL. Apply least-privilege database permissions.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as SQL Injection (CWE-89), which allows attackers to execute arbitrary SQL commands against the database. The tutor_mark_answer_as_correct AJAX action from the Tutor LMS - eLearning and online course solution WordPress plugin before 1.7.7 was vulnerable to blind and time based SQL injections that could be exploited by students. Affected products include: Themeum Tutor Lms. Version information: before 1.7.7.

Know when Tutor Lms gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

The tutor_mark_answer_as_correct AJAX action from the Tutor LMS - eLearning and online course solution WordPress plugin before 1.7.7 was vulnerable to blind and time based SQL injections that could be exploited by students.

Threat Intelligence Overview

EPSS Score
1.3%
Top 34% exploitable
Exploit
POC
Public exploit code exists
Data Quality
2 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC Yes
EPSS 1.3%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

53
Low Medium High Critical
KEV: 0
EPSS: +1
CVSS: +32
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

SQL injection exploits the way applications construct database queries by mixing user input directly into SQL statements.

Affected Products (CPE)NVD

cpe:2.3:a:themeum:tutor_lms:*:*:*:*:*:wordpress:*:*
CVE-2024-1751 HIGH POC
8.8 Mar 13

The Tutor LMS - eLearning and online course solution plugin for WordPress is vulnerable to time-based SQL Injection via

CVE-2024-4351 HIGH
8.8 May 16

The Tutor LMS Pro plugin for WordPress is vulnerable to unauthorized access of data, modification of data, loss of data

CVE-2026-19092 CRITICAL POC
9.8 Aug 27

Unauthenticated arbitrary PHP function invocation in the Tutor LMS WordPress plugin before 4.0.6 lets remote attackers o

CVE-2024-4352 HIGH
8.8 May 16

The Tutor LMS Pro plugin for WordPress is vulnerable to unauthorized access of data, modification of data, loss of data

CVE-2021-24184 HIGH POC
8.8 Apr 05

Several AJAX endpoints in the Tutor LMS - eLearning and online course solution WordPress plugin before 1.7.7 were unprot

CVE-2026-96537 HIGH POC
7.5 Oct 15

Unauthenticated remote attackers can force-publish, rewrite, and create the managed pages of any WordPress site running

CVE-2024-10400 HIGH POC
7.5 Nov 21

The Tutor LMS plugin for WordPress is vulnerable to SQL Injection via the ‘rating_filter’ parameter in all versions up t

CVE-2023-3133 HIGH POC
7.5 Jul 04

The Tutor LMS WordPress plugin before 2.2.1 does not implement adequate permission checks for REST API endpoints, allowi

CVE-2026-85569 HIGH POC
7.2 Sep 16

Privilege escalation in the Tutor LMS WordPress plugin (versions 2.7.1 up to but not including 4.0.8) lets the holder of

CVE-2026-12275 HIGH POC
7.1 Jul 13

Broken authorization in the Tutor LMS WordPress plugin (before 3.9.13) lets authenticated subscriber-level users bypass

CVE-2026-12274 MEDIUM POC
6.5 Jul 13

Broken object-level authorization in the Tutor LMS WordPress plugin before 3.9.13 allows any authenticated instructor-le

CVE-2021-24186 MEDIUM POC
6.5 Apr 05

The tutor_answering_quiz_question/get_answer_by_id function pair from the Tutor LMS - eLearning and online course soluti

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy