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TI-2026-10554 Aliases CVE-2026-12274GHSA-c7pm-q6w7-5993

Tutor LMS < 3.9.13 - Instructor+ Arbitrary Post Overwrite via IDOR

Priority MEDIUM 62Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · None
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 that the requesting user is allowed to edit a target post before overwriting it in one of its content-builder save handlers, authorizing the request only against an unrelated identifier, allowing authenticated users with instructor-level access to overwrite and take over any post or page on the site, including those owned by administrators.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00299 22nd 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-2026-10552 Tutor LMS < 3.9.13 - Subscriber+ Arbitrary Quiz Attempt Modification via IDORPriority MEDIUM 58
    • 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-2026-12274
  2. 2026-10-03 Alias added: GHSA-c7pm-q6w7-5993

References

Exploit 1

Sources

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