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CVE-2026-12360 – Unauthenticated SQL Injection – JetEngine WordPress Plugin ≤ 3.8.10.1

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Summary

CVE-2026-12360 is a high-severity unauthenticated SQL injection vulnerability in the JetEngine WordPress plugin by Crocoblock, affecting all versions up to and including 3.8.10.1. The flaw allows any unauthenticated remote attacker to extract sensitive data from the WordPress database — including user credentials and PII — by submitting a crafted AJAX request to a public-facing Listing Grid page. The CVSS v3.1 base score is 7.5 (High).

Technical details

  • Root cause: The listing_load_more AJAX handler accepts a filtered_query parameter that is intentionally excluded from HMAC query signature validation in order to support front-end filter integration. meta_query row values within this parameter are passed directly into SQL construction without sanitization or parameterization (CWE-89).
  • Trigger condition: The vulnerable code path is reachable on any WordPress site running a publicly accessible Listing Grid page with the "Load More" feature enabled — a common configuration for JetEngine-powered directory, listing, or dynamic content sites.
  • Attack vector: An unauthenticated attacker captures a legitimate listing_load_more AJAX request from any public Listing Grid page and replaces or appends a malicious meta_query value. No account, session token, or prior access is required.
  • Injection technique: Time-based and boolean blind SQL injection are confirmed viable attack paths.
  • Impact: High confidentiality impact (C:H). Successful exploitation enables full exfiltration of the WordPress database, including hashed user passwords, personally identifiable information, session tokens, and any other data stored in the database.

Affected software

  • JetEngine plugin for WordPress (by Crocoblock) — all versions up to and including 3.8.10.1

Severity

  • CVSS v3.1 Base Score: 7.5 (High)
  • Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • CWE: CWE-89 – Improper Neutralization of Special Elements used in an SQL Command

Mitigation and recommended actions

  • Immediate action: Update JetEngine to a version later than 3.8.10.1 via the WordPress plugin repository or the Crocoblock account dashboard. Confirm the installed version is no longer within the affected range after updating.
  • If a patched release cannot be applied immediately:
    • Disable the "Load More" feature on all public-facing Listing Grid pages to remove the vulnerable AJAX endpoint from the attack surface.
    • Restrict unauthenticated access to wp-admin/admin-ajax.php at the WAF or server level where operationally feasible.
    • Monitor database access logs and WAF logs for anomalous listing_load_more AJAX requests containing unexpected meta_query payloads.

IONIX Status

The IONIX research team is tracking ongoing exploitation attempts and recommends immediate patching. Potentially affected assets are outlined in this post.

References

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