MasterStudy LMS < 3.3.24 - Privilege Escalation to Instructor

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• stylemixthemes masterstudy lmsbefore 3.3.24

Versions reported by the vendor

Affected version ranges reported by the assigning authority (WPScan). Independent of NVD's CPE analysis and usually ahead of it.

• Unknown MasterStudy LMS WordPress Plugin

  • before 3.3.24affected · semver

Other highest-scoring records for the same primary product.

• CVE-2022-0441MasterStudy LMS < 2.7.6 - Unauthenticated Admin Account Creation
  65This week
• CVE-2024-1512MasterStudy LMS WordPress Plugin – for Online Courses and Education <= 3.2.5 - Unauthenticated SQL Injection
  62This week
• CVE-2024-3136MasterStudy LMS <= 3.3.3 - Unauthenticated Local File Inclusion via template
  41Plan
• CVE-2024-37094WordPress MasterStudy LMS plugin <= 3.2.12 - Broken Access Control vulnerability
  39Monitor
• CVE-2024-2411MasterStudy LMS <= 3.3.0 - Unauthenticated Local File Inclusion via modal
  39Monitor
• CVE-2024-2409MasterStudy LMS <= 3.3.1 - Unauthenticated Privilege Escalation via stm_lms_register AJAX Action
  39Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

The endpoint fetches the record by the ID sent in the request, but never checks whether the record belongs to the requesting user.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1const invoice = await Invoice.findById(req.params.id);2res.json(invoice);

1const invoice = await Invoice.findOne({2  id: req.params.id,3  ownerId: req.user.id,4});5if (!invoice) return res.sendStatus(404);6res.json(invoice);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.