CVE-2023-28777 HIGH

CVE-2023-28777: WordPress LearnDash LMS Plugin <= 4.5.3 is vulnerable to SQL Injection

Vendor Learndash

Product LearnDash LMS

Weakness CWE-89 · SQLi

Published October 31, 2023

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

8.5/10

Attack vector Network

Attack complexity Low

Privileges required Low

User interaction None

Confidentiality High

Integrity None

CVSS vector

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

What the vulnerability does

01Description

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in LearnDash LearnDash LMS allows SQL Injection.This issue affects LearnDash LMS: from n/a through 4.5.3.

Explanation of Vulnerability in Simple Terms

02Summary

LearnDash LMS versions up to 4.5.3 contain a SQL injection vulnerability in a database query that processes user input without proper sanitization. An authenticated user with low privileges can craft a malicious request to extract sensitive data from the database or disrupt site availability. The vulnerability affects the entire site scope, not just the plugin's isolated functions.

What an attacker can do

03Attacker Capabilities

Extract sensitive data from the site database or cause the site to become unavailable.

Potential impact on your site

04Site Impact

Unauthorized access to student records, course data, and other sensitive information; potential site downtime.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account on the site; no user interaction required.

Key dates

06Disclosure timeline

October 31, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-28777 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/89.html AskarLabs — CWE-89 write-up SQL Injection

Related vulnerabilities