---
id: "CVE-2026-119219"
page: "https://infrastack.ai/live/CVE-2026-119219"
kind: "vulnerability"
aliases: ["CVE-2026-119219"]
title: "Jupiter X Core WordPress plugin: stored XSS via custom meta fields"
severity: "medium"
cvss: 5.4
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["jupiter-x-core", "package", "self-hosted", "wordpress"]
not_affected_if: ["no-raven-author-box-widget", "plugin-not-installed"]
published_at: "2026-11-07T03:17:02+00:00"
first_seen_at: "2026-11-07T03:45:33+00:00"
updated_at: "2026-11-07T03:48:01+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-119219", "first_seen_at": "2026-11-07T03:45:33+00:00"}]
exploit_sources: []
---

# Jupiter X Core WordPress plugin: stored XSS via custom meta fields

Link for people: https://infrastack.ai/live/CVE-2026-119219 (this .md is for agents)

The Jupiter X Core plugin for WordPress does not sanitize the 'fields[...]' parameter, so injected scripts are saved and stored in pages. When a user opens an affected page, the script runs in their browser.

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

## How to check

- Check whether the Jupiter X Core plugin is installed and its version (`4.62.0` or earlier is affected per the description).
- Check whether any page or post template uses the Raven Author Box widget.

## Timeline

- 2026-11-07T03:45:33+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-119219

## From the sources

The Jupiter X Core plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'fields[<custom_meta_field_id>]' parameter in all versions up to, and including, 4.62.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. Execution requires that the attacker-registered account be assigned as the post_author of a page or post whose template includes the Raven Author Box widget, a fixture an administrator can create by reassigning authorship to any user including newly registered Subscribers.

---

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