CVE-2026-81026 — MasterStudy LMS < 3.7.40 - Unauthenticated Payment Bypass via PayPal IPN

CVE-2026-81026

MasterStudy LMS < 3.7.40 - Unauthenticated Payment Bypass via PayPal IPN PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Unknown / MasterStudy LMS WordPress Plugin	affected 0 before 3.7.40

CWE

No CWE identifiers supplied.

References

https://wpscan.com/vulnerability/6677b55c-5d51-4849-ac67-849a500aefe2/

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.