CVE-2026-81342

The MasterStudy LMS WordPress Plugin WordPress plugin before 3.7.43 does not validate a redirect parameter supplied during user registration before using it, allowing unauthenticated attackers to redirect users to arbitrary external URLs.

CVSS v3.1

4.7 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

EPSS

0.17% chance of exploitation in the next 30 days, 7th percentile

Published

2026-08-29

Updated

2026-08-30

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/f6f89b50-3087-4fb6-ba12-93fdc1bcc9ed/

References

• CVE Record
• NVD entry

Related

• CVE-2026-8133
• CVE-2026-81346
• CVE-2026-8132
• CVE-2026-8136
• CVE-2026-8131
• CVE-2026-8137