CVE-2026-14207

LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes <= 10.0.9 - Authenticated (Custom role+) Stored Cross-Site Scripting

2026-07-30 00:00
Mustafa Ahmed

Strategic Overview

Status
Patched in 10.0.10
Affected Plugin
LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes
Affected Version
<= 10.0.9
CVSS
6.4Medium
Weakness type
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE
CVE-2026-14207
View all LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes vulnerabilities

At a glance

CVE-2026-14207 is a medium-severity Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in the LifterLMS WordPress plugin, affecting versions <= 10.0.9. It carries a CVSS score of 6.4 (reachable over the network; low attack complexity). Exploitation requires an authenticated account at Custom role level or above. The issue is fixed in version 10.0.10; sites on affected versions should update now. Disclosed July 2026, reported by Mustafa Ahmed.

Vulnerability Overview

The LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 10.0.9 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with custom role-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user.

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Reaching this weakness in LifterLMS <= 10.0.9 takes an account at Custom role level or above. Cross-site scripting happens when input from a request is written into a page without being escaped for the context it lands in, so the browser parses attacker-supplied text as markup or script.

Injected script runs with the privileges of whoever views the affected page, which is how these flaws turn into administrator session theft, silent account creation or persistent backdoors in page content. For LifterLMS the fix is 10.0.10: builds <= 10.0.9 are affected, anything from 10.0.10 onward is not.

Remediation

Update to version 10.0.10, or a newer patched version

How WordSec helps

An attacker needs Custom role access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: LifterLMS 10.0.10 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-14207https://www.wordfence.com/threat-intel/vulnerabilities/id/3fd6469c-bf36-4a46-a899-8d5163df8935https://nvd.nist.gov/vuln/detail/CVE-2026-14207

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C