---
id: "CVE-2026-119531"
page: "https://infrastack.ai/live/CVE-2026-119531"
kind: "vulnerability"
aliases: ["CVE-2026-119531"]
title: "Live Composer WordPress plugin: stored script runs in visitors' browsers"
severity: "medium"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["live-composer", "package", "self-hosted", "wordpress"]
not_affected_if: ["no-contributor-users", "plugin-2.1.24-or-later", "plugin-not-installed"]
published_at: "2026-11-11T06:17:16+00:00"
first_seen_at: "2026-11-11T06:25:42+00:00"
updated_at: "2026-11-11T06:27:34+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119531", "first_seen_at": "2026-11-11T06:25:42+00:00"}]
exploit_sources: []
---

# Live Composer WordPress plugin: stored script runs in visitors' browsers

Link for people: https://infrastack.ai/live/CVE-2026-119531 (this .md is for agents)

The Live Composer WordPress plugin before 2.1.24 fails to escape several shortcode attributes when it prints them into HTML. A user with Contributor access can store a payload that runs in the browser of anyone who views the post, including an administrator reviewing it.

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

## How to check

- Check the installed Live Composer plugin version in the WordPress admin under Plugins; a version below `2.1.24` is affected.
- Look for Live Composer page-builder shortcodes in posts written by Contributor-level users.

## Fix

- Live Composer plugin: move to `2.1.24` or later.

## Timeline

- 2026-11-11T06:25:42+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119531

## From the sources

The Live Composer  WordPress plugin before 2.1.24 does not escape several attributes of one of its page-builder shortcodes before outputting them inside HTML tag attributes, allowing users with the Contributor role and above to store a payload that executes in the browser of anyone who views the post, including an administrator reviewing the pending submission.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_