LifterLMS Plugin up to 10.3.2 on WordPress answer cross site scripting

Summaryinfo

A vulnerability identified as problematic has been detected in LifterLMS Plugin up to 10.3.2. This affects an unknown part. The manipulation of the argument answer leads to cross site scripting. This vulnerability is listed as CVE-2026-119098. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in LifterLMS Plugin up to 10.3.2 and classified as problematic. This issue affects some unknown functionality. The manipulation of the argument answer with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. The summary by CVE is:

The LifterLMS – WP LMS for eLearning, Online Courses, & Quizzes plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'answer[]' parameter in all versions up to, and including, 10.3.2 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Exploitation requires the attacker to be enrolled as a student in a course containing a Content-type quiz question; the injected payload executes in the administrator's browser session during the normal grading workflow when 'Start a Review' is clicked on the affected attempt.

It is possible to read the advisory at wordfence.com. The identification of this vulnerability is CVE-2026-119098 since 10/29/2026. The exploitation is known to be easy. The attack may be initiated remotely. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Name

• LifterLMS Plugin

Version

• 10.3.0
• 10.3.1
• 10.3.2

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CPE 2.2info

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