CVE-2022-2080: Sensei LMS < 4.5.2 - Arbitrary Private Message Sending via IDOR

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-08-29 · updated 2026-06-17
Weakness: CWE-639

Description

The Sensei LMS WordPress plugin before 4.5.2 does not ensure that the sender of a private message is either the teacher or the original sender, allowing any authenticated user to send messages to arbitrary private conversation via a IDOR attack. Note: Attackers are not able to see responses/messages between the teacher and student

Affected products

Sensei LMS: before 4.5.2 — fixed in 4.5.2

How to fix

Upgrade to a fixed version: Sensei LMS 4.5.2. Check the vendor advisory for mitigations.

References

https://hackerone.com/reports/1592596
https://wpscan.com/vulnerability/5395d196-a39a-4a58-913e-5b5b9d6123a5
https://hackerone.com/reports/1592596
https://wpscan.com/vulnerability/5395d196-a39a-4a58-913e-5b5b9d6123a5

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