WordPress 1 vulnerability

Is the LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes plugin safe?

Below are the known, publicly disclosed vulnerabilities of the LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes (WordPress) component. If you use it on your site, check the version and update it before the flaw gets exploited.

Using the LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes plugin? Check for free whether your site is vulnerable through it, or have us update and secure it.

Known vulnerabilities

Wysoka · CVSS 8.8 CVE-2026-104723 October 10, 2026

LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes: niebezpieczna deserializacja

Niebezpieczna deserializacja w komponencie LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes. Ocena zagrożenia: Wysoka (CVSS 8.8). Zaktualizuj podatny komponent do najnowszej wersji lub tymczasowo go wyłącz.

How to check whether this affects you

  • Check the installed version of the LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes component in the admin panel.
  • Compare it with the fixed version noted in the details of the relevant vulnerability above.
  • If your version is older, update the component to the latest available.
  • If a fix has not been released yet, temporarily disable the vulnerable element and watch your logs.
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