---
id: "CVE-2026-93878"
kind: "vulnerability"
aliases: ["CVE-2026-93878"]
title: "DiviGear Carousel WordPress plugin: stored XSS via license update action"
severity: "medium"
cvss: 6.4
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["divi", "package", "self-hosted", "wordpress", "wordpress-plugins"]
not_affected_if: ["no-subscriber-accounts", "patched-version", "plugin-not-installed"]
published_at: "2026-10-20T07:17:09+00:00"
first_seen_at: "2026-10-23T21:57:20+00:00"
updated_at: "2026-10-25T03:59:33+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93878", "first_seen_at": "2026-10-23T21:57:20+00:00"}]
---

# DiviGear Carousel WordPress plugin: stored XSS via license update action

The DiviGear Carousel plugin for WordPress up to and including 5.2.0 does not sanitize the license value saved through its update_license AJAX action, and echoes it unescaped on the Activation settings page. An authenticated user with subscriber-level access can store a script that runs in an administrator's browser when they open DiviGear > Activation.

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

## How to check

- Check the installed DiviGear Carousel plugin version in the WordPress admin Plugins screen; versions up to and including `5.2.0` are affected
- Look for the plugin's `update_license` AJAX action in the plugin source and confirm the license value is echoed without escaping on the Activation settings page
- Check whether untrusted subscriber accounts exist on the site

## Fix

- Update DiviGear Carousel to a version later than `5.2.0` once a fixed release is available; the sources do not name the fixed version
- Until patched, deactivate the plugin or restrict subscriber registration
- Review stored license values for script tags

## Timeline

- 2026-10-23T21:57:20+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-93878

## From the sources

The DiviGear Carousel plugin for WordPress is vulnerable to Stored Cross-Site Scripting via update_license AJAX Action in all versions up to, and including, 5.2.0 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. The injected payload executes when an administrator visits the DiviGear > Activation settings page, where the unsanitized stored value is echoed unescaped into a single-quoted HTML value attribute.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_