CVE-2026-81026mediumCWE-284

CVE-2026-81026: medium-severity vulnerability in MasterStudy LMS WordPress Plugin

MasterStudy LMS < 3.7.40 - Unauthenticated Payment Bypass via PayPal IPN

Published · Updated

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33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 4.8epss 0.2%
The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.40 does not verify the amount, receiver, currency or status of a payment notification before marking the corresponding order completed, allowing unauthenticated users to complete full-price orders and gain access to paid content by paying only a token amount.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Affected products
Unknown · MasterStudy LMS WordPress Plugin
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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