WPB Popup for Contact Form 7 – Showing The Contact Form 7 Popup on Button Click – CF7 Popup <= 1.7.5 — Unauthenticated Arbitrary Shortcode Execution via wpb_pcf_fire_contact_form

Am I affected?

• Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WPB Popup for Contact Form 7 – Showing Contact Form 7 Popup on Button Click.
• No admin access? Run a passive check of your site. It reads public files only.
• No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

1. Update to version 1.7.6, or a newer patched version
2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
3. Watch WPB Popup for Contact Form 7 – Showing Contact Form 7 Popup on Button Click to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Arkadiusz Hydzik.

The The WPB Popup for Contact Form 7 – Showing The Contact Form 7 Popup on Button Click – CF7 Popup plugin for WordPress is vulnerable to arbitrary shortcode execution via wpb_pcf_fire_contact_form AJAX action in all versions up to, and including, 1.7.5. This is due to the software allowing users to execute an action that does not properly validate a value before running do_shortcode. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

• Advisorywordfence.com

Timeline

1. Nov 18, 2024

   CVE published

   Severity high, CVSS 7.3

2. Nov 13, 2026

   Record last updated