Tutor LMS <= 3.9.12 - Authenticated (Subscriber+) Insecure Direct Object Reference to Quiz Attemp Modification

2026-06-22 00:00

Muni Nitish Kumar Yaddala

Strategic Overview

Status

Patched in 3.9.13

Affected PluginTutor LMS – eLearning and online course solution

Affected Version<= 3.9.12

CVSS4.3Medium

CVECVE-2026-12271

View all Tutor LMS – eLearning and online course solution vulnerabilities

Vulnerability Overview

The Tutor LMS plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.9.12 due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify quiz attempts.

Technical Analysis

REMEDIATION: Update to version 3.9.13, or a newer patched version --- IDENTIFIER: CWE-639 (Authorization Bypass Through User-Controlled Key) The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

External References

https://www.cve.org/CVERecord?id=CVE-2026-12271 https://www.wordfence.com/threat-intel/vulnerabilities/id/fa9a8227-6e2a-4375-9672-20290ece292c

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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