CVE-2020-27481

9.8 criticalEPSS 9.8%

Critical (9.8) in goodlayers good learning management system. EPSS 9.8% chance of exploitation in the next 30 days.

An unauthenticated SQL Injection vulnerability in Good Layers LMS Plugin <= 2.1.4 exists due to the usage of "wp_ajax_nopriv" call in WordPress, which allows any unauthenticated user to get access to the function "gdlr_lms_cancel_booking" where POST Parameter "id" was sent straight into SQL query without sanitization.

Severity

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 9.8% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-31)
CWE: CWE-89
Published: 2020-11-12
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

goodlayers:good_learning_management_system

References

https://gist.github.com/0xx7/a7aaa8b0515139cf7e30c808c8d54070
https://gist.github.com/0xx7/a7aaa8b0515139cf7e30c808c8d54070

Check your stack JSON