CVE-2026-6709: Auth Bypass (CVSS 4.3)

Description

The Coinbase Commerce for Contact Form 7 plugin for WordPress is vulnerable to Missing Authorization in versions up to and including 1.1.2. This is due to a missing capability check and missing nonce verification in the save_settings() function, which is registered on the admin_post_cccf7_save_settings hook. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the plugin's Coinbase Commerce API key option (cccf7_api_key) via a crafted POST request to /wp-admin/admin-post.

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CVSS v3.1 Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS — Exploit Prediction

0.0004

Probability of exploitation

0.11%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-862 Missing Authorization

References

Other References

https://plugins.trac.wordpress.org/browser/coinbase-commerce-for-contact-form-7/tags/1.1.2/includes/class-admin-settings.php#L231 https://plugins.trac.wordpress.org/browser/coinbase-commerce-for-contact-form-7/tags/1.1.2/includes/class-admin-settings.php#L232 https://plugins.trac.wordpress.org/browser/coinbase-commerce-for-contact-form-7/tags/1.1.2/includes/class-admin-settings.php#L51 https://plugins.trac.wordpress.org/browser/coinbase-commerce-for-contact-form-7/trunk/includes/class-admin-settings.php#L231 https://plugins.trac.wordpress.org/browser/coinbase-commerce-for-contact-form-7/trunk/includes/class-admin-settings.php#L232 https://plugins.trac.wordpress.org/browser/coinbase-commerce-for-contact-form-7/trunk/includes/class-admin-settings.php#L51 https://www.wordfence.com/threat-intel/vulnerabilities/id/9bff2532-802c-4bb1-a0a2-7f5f928deb23?source=cve

Frequently Asked Questions

What is CVE-2026-6709? +

The Coinbase Commerce for Contact Form 7 plugin for WordPress is vulnerable to Missing Authorization in versions up to and including 1.1.2. This is due to a missing capability check and missing nonce verification in the save_settings() function, which is registered on the admin_post_cccf7_save_settings hook. This makes it possible for authenticated attackers, with Subscriber-level access and above, to overwrite the plugin's Coinbase Commerce API key option (cccf7_api_key) via a crafted POST request to /wp-admin/admin-post. It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2026-6709? +

CVE-2026-6709 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0004, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-6709? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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