Instructor billing-data disclosure via order IDOR
Published Aug 29, 2026 · Updated Aug 29, 2026
Broken access control in StylemixThemes MasterStudy LMS before 3.7.42 allows remote authenticated users to read other customers' billing data. The order-information handler trusts an enumerated order ID without verifying that the instructor owns or is entitled to view the referenced order. Instructor access is required, and successful enumeration discloses names, email addresses, phone numbers, and postal addresses without altering orders.
Summary
What happened
Broken access control in StylemixThemes MasterStudy LMS before 3.7.42 allows remote authenticated users to read other customers' billing data. The order-information handler trusts an enumerated order ID without verifying that the instructor owns or is entitled to view the referenced order. Instructor access is required, and successful enumeration discloses names, email addresses, phone numbers, and postal addresses without altering orders.
The record
- CVE
- CVE-2026-81200
- Published
- Aug 29, 2026
- Updated
- Aug 29, 2026
- Vendor
- StylemixThemes
- Product
- MasterStudy LMS
- Classifications
- CWE-284, CWE-639, T1213
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Aug 29, 2026CVE publishedPublication date reported by the CVE source.
- Aug 29, 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 <3.7.42
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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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