Is CVE-2026-18594 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-18594 being exploited in the wild.

How severe is CVE-2026-18594?

Medium severity, with a CVSS score of 4.3, published 10 September 2026.

Which products and versions are affected?

WordPress Plugin Developers Advanced Contact form 7 DB up to and including 2.1.3.

Is there a fix for CVE-2026-18594?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-18594 attacked?

It is attacked over the network, in a web application.

Am I affected by CVE-2026-18594?

Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-18594: Advanced Contact form 7 DB authorization bypass

CVE-2026-18594 · Severity: medium · CVSS 4.3 · Published 2026-09-10

The Advanced Contact form 7 DB plugin for WordPress fails to properly authorize user actions before allowing CSV imports. An authenticated attacker with lower privilege levels (custom-level access or higher) could import forged contact form submissions into any Contact Form 7 form, potentially corrupting business records, creating false leads, or manipulating form data used in business operations.

Quick answers

Is CVE-2026-18594 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-18594 being exploited in the wild.
How severe is CVE-2026-18594?: Medium severity, with a CVSS score of 4.3, published 10 September 2026.
Which products and versions are affected?: WordPress Plugin Developers Advanced Contact form 7 DB up to and including 2.1.3.
Is there a fix for CVE-2026-18594?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-18594 attacked?: It is attacked over the network, in a web application.
Am I affected by CVE-2026-18594?: Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This vulnerability is an authorization bypass (CWE-639) in the CSV import functionality of the Advanced Contact form 7 DB plugin. The plugin fails to properly verify user permissions before processing CSV uploads in the import_cf7_csv.php and import_cf7_entry.class.php files. An authenticated attacker with custom-level access or higher can bypass authorization checks and inject arbitrary submission records into any Contact Form 7 form. The vulnerability requires authentication and valid plugin access but does not require administrative privileges. Patches are available in versions above 2.1.3.

Affected products

WordPress Plugin Developers Advanced Contact form 7 DB up to and including 2.1.3

Timeline

2026-09-10: disclosed

References

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