Subscriber course access via unchecked integration handlers
Published Jul 13, 2026 · Updated Jul 13, 2026
Authorization bypass in Themeum Tutor LMS before 3.9.13 allows remote authenticated users to access paid or private courses. The identical Ajax::tutor_handle_api_calls handlers in the Droip and Kirki backends process enroll_course and complete_course requests without the core handler’s enrollment, purchase, or private-course capability checks. Subscriber-level access, a valid Tutor nonce, and an active Droip or Kirki integration are required; successful requests disclose private content and insert arbitrary course-completion records.
Summary
What happened
Authorization bypass in Themeum Tutor LMS before 3.9.13 allows remote authenticated users to access paid or private courses. The identical Ajax::tutor_handle_api_calls handlers in the Droip and Kirki backends process enroll_course and complete_course requests without the core handler’s enrollment, purchase, or private-course capability checks. Subscriber-level access, a valid Tutor nonce, and an active Droip or Kirki integration are required; successful requests disclose private content and insert arbitrary course-completion records.
The record
- CVE
- CVE-2026-12275
- Published
- Jul 13, 2026
- Updated
- Jul 13, 2026
- Vendor
- Themeum
- Product
- Tutor LMS
- Classifications
- CWE-287
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 13, 2026CVE publishedPublication date reported by the CVE source.
- Jul 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <3.9.13
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- WPScan authenticated Ajax proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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