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Vulnerability record · CVE-2020-27481 · published 12 November 2020

CVE-2020-27481: Goodlayers good learning management system sql injection vulnerability

Goodlayers · Good Learning Management System

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.

9.8 CVSS 3.1 Critical EPSS 10% · top 4.5% CWE-89 · SQL injection
9.8CVSS 3.1 base score, v2 7.5
10%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://gist.github.com/0xx7/a7aaa8b0515139cf7e30c808c8d54070 ExploitThird Party Advisory
https://gist.github.com/0xx7/a7aaa8b0515139cf7e30c808c8d54070 ExploitThird Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2020-27481), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.