CVE-2026-0811 Advanced Contact form 7 DB CVE debrief

Who should care

Users of the Advanced Contact form 7 DB plugin for WordPress, particularly those with versions up to and including 2.0.9, should be aware of this vulnerability and take necessary actions to protect their sites. Site administrators and security teams should review the vulnerability and implement necessary mitigations to prevent exploitation.

Technical summary

The Advanced Contact form 7 DB plugin for WordPress is vulnerable to Cross-Site Request Forgery (CSRF) in all versions up to, and including, 2.0.9. The vulnerability is caused by missing or incorrect nonce validation on the 'vsz_cf7_save_setting_callback' function. This allows unauthenticated attackers to delete form entries via a forged request, as long as they can trick a site administrator into performing an action such as clicking on a link. The vulnerability has a CVSS score of 5.4 and a severity of MEDIUM.

Defensive priority

Medium priority due to the potential for attackers to delete form entries, which could lead to data loss or other unintended consequences.

Recommended defensive actions

• Update the Advanced Contact form 7 DB plugin to a version beyond 2.0.9.
• Implement additional security measures such as monitoring for suspicious activity and restricting access to the plugin's settings.
• Educate site administrators on the importance of being cautious when clicking on links.
• Review compensating controls for exposed systems while remediation is scheduled and verified.
• Check relevant monitoring, detection, and logs for exposed assets that need extra review.
• Track exceptions, retest remediated assets, and close the item only after evidence is documented.
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up.

Evidence notes

The CVE record was published on 2026-04-08T19:24:52.740Z and was last modified on 2026-07-25T11:10:00.100Z. The NVD entry is currently Deferred. The Advanced Contact form 7 DB plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.0.9. This is due to missing or incorrect nonce validation on the 'vsz_cf7_save_setting_callback' function. Evidence is limited to public CVE and NVD information.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.