CVE-2026-12271

Tutor LMS < 3.9.13 - Subscriber+ Arbitrary Quiz Attempt Modification via IDOR

Published Jul 13, 2026 CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed
Description
The Tutor LMS WordPress plugin before 3.9.13 does not verify ownership of the targeted quiz attempt before writing to it, allowing authenticated users with subscriber-level access and above to modify and force-complete other students' quiz attempts, overwriting their recorded marks and pass/fail result.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions tutor Lms
Vendors & Products Wordpress-extensions
Wordpress-extensions tutor Lms
Type Values Removed Values Added
Weaknesses CWE-284
CWE-639
Type Values Removed Values Added
Weaknesses CWE-284
CWE-639
Type Values Removed Values Added
Weaknesses CWE-284
CWE-639
Type Values Removed Values Added
Weaknesses CWE-284
CWE-639
Type Values Removed Values Added
Weaknesses CWE-284
CWE-639
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The Tutor LMS WordPress plugin before 3.9.13 does not verify ownership of the targeted quiz attempt before writing to it, allowing authenticated users with subscriber-level access and above to modify and force-complete other students' quiz attempts, overwriting their recorded marks and pass/fail result.
Title Tutor LMS < 3.9.13 - Subscriber+ Arbitrary Quiz Attempt Modification via IDOR
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Jul 13, 2026, 3:49 PM
Reserved
Jun 15, 2026, 11:01 AM
Status
Deferred
Published
Jul 13, 2026, 7:16 AM
Modified
Jul 13, 2026, 6:05 PM