Read the docs
TI-2026-10552 Aliases CVE-2026-12271GHSA-pqgf-9jm9-v6q5

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

Priority MEDIUM 58Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00287 21st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Tutor LMS (Unknown): 3.9.13

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
UnknownTutor LMSbefore 3.9.133.9.13Patch availableCNA
  • Tutor LMS VendorUnknown Affected before 3.9.13 Fixed in 3.9.13 Patch available CNA

Remediation

  • Fix · CNA Tutor LMS (Unknown) Fixed in 3.9.13

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Tutor LMS 3.9.13

    4 records Highest priority Priority MEDIUM 4 MEDIUM

    Other records, highest priority first

    • TI-2026-10555 Tutor LMS < 3.9.13 - Subscriber+ Unauthorized Course Enrollment and Private Course…Priority MEDIUM 64
    • TI-2026-10554 Tutor LMS < 3.9.13 - Instructor+ Arbitrary Post Overwrite via IDORPriority MEDIUM 62
    • TI-2026-10553 Tutor LMS < 3.9.13 - Subscriber+ Arbitrary Auto-Approved Comment CreationPriority MEDIUM 53
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-12271
  2. 2026-10-03 Alias added: GHSA-pqgf-9jm9-v6q5

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences