CVE-2020-27481

Name: CVE-2020-27481
Creator: NVD / NIST
Published: 2020-11-12T14:15:23.08+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 10.64%

Last modified Jun 17, 2026

CVE-2020-27481 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 10.64% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

10.64%

95.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-89

Affected Software

Vendor	Product	Versions
Goodlayers	Good Learning Management System	<= 2.1.4

References

https://gist.github.com/0xx7/a7aaa8b0515139cf7e30c808c8d54070Exploit, Third Party Advisory
https://gist.github.com/0xx7/a7aaa8b0515139cf7e30c808c8d54070Exploit, Third Party Advisory

Timeline

Published: Nov 12, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-27481?

How severe is CVE-2020-27481?

CVE-2020-27481 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 10.64% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27481?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-27481?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST