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Contact Form 7 vulnerabilities
Contact Form 7 has 2 known vulnerabilities in this database. The most recent published record is dated 29 May 2026.
- Known vulnerabilities
- 2
- Active installs
- 7,000+
- Latest version
- 2.5.2
- Last updated
- 14 Aug 2026
- Most recent
- 29 May 2026
Find it in your WordPress dashboard under Plugins. Severity is based on the CVSS score published with the CVE where one is available.
| Vulnerability | Severity | Affected | Fix | Published |
|---|---|---|---|---|
| Security weakness CVE-2026-9189 | Medium 5.3 | Up to 2.4.9 | Fixed in a later version (latest 2.5.2) | 29 May 2026 |
| Cross-site scripting (XSS) CVE-2024-10683 | Medium 6.1 | Before 2.3.2 | Fixed in 2.3.2 | 9 Nov 2024 |
Read the published descriptions
- CVE-2026-9189, 29 May 2026
- The Contact Form 7 - PayPal & Stripe Add-on plugin for WordPress is vulnerable to Payment Bypass via Insufficient Verification of Data Authenticity in all versions up to, and including, 2.4.9. Although `cf7pp_paypal_ipn_handler()` correctly validates IPN authenticity by posting back to PayPal with `cmd=_notify-validate`, it fails to compare the IPN payload's `mc_gross` (payment amount), `mc_currency`, or `receiver_email` fields against the corresponding stored order values before passing the attacker-controlled `invoice` field directly to `cf7pp_complete_payment()`, which marks the order completed after only an integer cast with no amount verification. This makes it possible for unauthenticated attackers to mark arbitrary high-value pending orders as fully paid by making a minimal real PayPal payment and crafting an IPN whose `invoice` parameter references the targeted order, effectively completing purchases without tendering the required payment amount. CVE record
- CVE-2024-10683, 9 Nov 2024
- The Contact Form 7 - PayPal & Stripe Add-on plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg & remove_query_arg without appropriate escaping on the URL in all versions up to, and including, 2.3.1. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. This is only exploitable when the leave a review notice is present in the dashboard. CVE record
What to do if you run Contact Form 7
If you run Contact Form 7, open WordPress and check the installed version in Plugins. Compare it with the affected versions in the vulnerability record. If a fixed version is available, take a current backup and update to that version or the latest supported release.
If no fixed version exists, consider disabling and removing the plugin or replacing it with a maintained alternative. After dealing with the affected software, check administrator users, unexpected file changes, redirects, unfamiliar pages and security logs for signs that the site may already have been altered.
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