Unauthorized Quiz Manipulation in Tutor LMS Plugin by Tutor Pro Inc.
CVE-2026-12271

5.4MEDIUM

Key Information:

Vendor

WordPress
Status
Tutor Lms
Vendor
CVE Published:
13 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-12271?

The Tutor LMS WordPress plugin prior to version 3.9.13 contains an access control flaw that allows authenticated users with subscriber-level permissions or higher to manipulate quiz attempts. This vulnerability enables these users to overwrite quiz marks and force-complete the assessment for other students, thereby compromising the integrity of the quiz results.

Affected Version(s)

Tutor LMS 0 < 3.9.13

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-12271 - Proof of Concept

References

https://wpscan.com/vulnerability/ca99ea35-4bf8-4dc8-a817-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Muni Nitish Kumar Yaddala
WPScan
.