---
id: "CVE-2026-119098"
page: "https://infrastack.ai/live/CVE-2026-119098"
kind: "vulnerability"
aliases: ["CVE-2026-119098"]
title: "LifterLMS WordPress plugin: stored XSS via quiz answers reaches admins"
severity: "medium"
cvss: 6.4
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["elearning", "lifterlms", "package", "wordpress"]
not_affected_if: ["newer-version", "no-content-type-quiz-questions", "plugin-not-installed"]
published_at: "2026-11-07T03:17:00+00:00"
first_seen_at: "2026-11-07T03:45:32+00:00"
updated_at: "2026-11-07T03:47:53+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119098", "first_seen_at": "2026-11-07T03:45:32+00:00"}]
exploit_sources: []
---

# LifterLMS WordPress plugin: stored XSS via quiz answers reaches admins

Link for people: https://infrastack.ai/live/CVE-2026-119098 (this .md is for agents)

The LifterLMS WordPress plugin does not sanitize the 'answer[]' quiz parameter, so a student can store a script that runs later. When an administrator opens the attempt during grading ('Start a Review'), the script runs in their browser session.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed LifterLMS plugin version in the WordPress admin Plugins screen against the affected range (all versions up to and including `10.3.2`).
- Look for the plugin's `lifterlms` directory under `wp-content/plugins/` and read its version header.

## Timeline

- 2026-11-07T03:45:32+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119098

## From the sources

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.

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