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6 vulnerabilities found for Contact Form 7 – PayPal & Stripe Add-on by scottpaterson
CVE-2026-9189 (GCVE-0-2026-9189)
Vulnerability from nvd – Published: 2026-05-29 08:28 – Updated: 2026-05-29 10:04
VLAI
Title
Contact Form 7 – PayPal & Stripe Add-on <= 2.4.9 - Unauthenticated Payment Bypass via Insufficient Verification of Data Authenticity via PayPal IPN Handler ('invoice'/'mc_gross' Verification)
Summary
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.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-345 - Insufficient Verification of Data Authenticity
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| scottpaterson | Contact Form 7 – PayPal & Stripe Add-on |
Affected:
0 , ≤ 2.4.9
(semver)
|
Credits
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CVE-2024-10683 (GCVE-0-2024-10683)
Vulnerability from nvd – Published: 2024-11-09 06:41 – Updated: 2026-04-08 16:50
VLAI
Title
Contact Form 7 - PayPal & Stripe Add-on <= 2.3.1 - Reflected Cross-Site Scripting
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| scottpaterson | Contact Form 7 – PayPal & Stripe Add-on |
Affected:
0 , ≤ 2.3.1
(semver)
|
Credits
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CVE-2024-1719 (GCVE-0-2024-1719)
Vulnerability from nvd – Published: 2024-02-28 09:33 – Updated: 2026-04-08 17:13
VLAI
Title
Easy PayPal & Stripe Buy Now Button <= 1.8.3 & Contact Form 7 – PayPal & Stripe Add-on <= 2.1 - Cross-Site Request Forgery to Settings Update
Summary
The Easy PayPal & Stripe Buy Now Button plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.8.3 and in Contact Form 7 – PayPal & Stripe Add-on all versions up to, and including 2.1. This is due to missing or incorrect nonce validation on the 'wpecpp_stripe_connect_completion' function. This makes it possible for unauthenticated attackers to modify the plugins settings and chance the stripe connection via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| scottpaterson | Easy PayPal & Stripe Buy Now Button |
Affected:
0 , ≤ 1.8.3
(semver)
|
|
| scottpaterson | Contact Form 7 – PayPal & Stripe Add-on |
Affected:
0 , ≤ 2.1
(semver)
|
Credits
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CVE-2026-9189 (GCVE-0-2026-9189)
Vulnerability from cvelistv5 – Published: 2026-05-29 08:28 – Updated: 2026-05-29 10:04
VLAI
Title
Contact Form 7 – PayPal & Stripe Add-on <= 2.4.9 - Unauthenticated Payment Bypass via Insufficient Verification of Data Authenticity via PayPal IPN Handler ('invoice'/'mc_gross' Verification)
Summary
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.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-345 - Insufficient Verification of Data Authenticity
Assigner
References
8 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| scottpaterson | Contact Form 7 – PayPal & Stripe Add-on |
Affected:
0 , ≤ 2.4.9
(semver)
|
Credits
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CVE-2024-10683 (GCVE-0-2024-10683)
Vulnerability from cvelistv5 – Published: 2024-11-09 06:41 – Updated: 2026-04-08 16:50
VLAI
Title
Contact Form 7 - PayPal & Stripe Add-on <= 2.3.1 - Reflected Cross-Site Scripting
Summary
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.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| scottpaterson | Contact Form 7 – PayPal & Stripe Add-on |
Affected:
0 , ≤ 2.3.1
(semver)
|
Credits
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CVE-2024-1719 (GCVE-0-2024-1719)
Vulnerability from cvelistv5 – Published: 2024-02-28 09:33 – Updated: 2026-04-08 17:13
VLAI
Title
Easy PayPal & Stripe Buy Now Button <= 1.8.3 & Contact Form 7 – PayPal & Stripe Add-on <= 2.1 - Cross-Site Request Forgery to Settings Update
Summary
The Easy PayPal & Stripe Buy Now Button plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.8.3 and in Contact Form 7 – PayPal & Stripe Add-on all versions up to, and including 2.1. This is due to missing or incorrect nonce validation on the 'wpecpp_stripe_connect_completion' function. This makes it possible for unauthenticated attackers to modify the plugins settings and chance the stripe connection via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| scottpaterson | Easy PayPal & Stripe Buy Now Button |
Affected:
0 , ≤ 1.8.3
(semver)
|
|
| scottpaterson | Contact Form 7 – PayPal & Stripe Add-on |
Affected:
0 , ≤ 2.1
(semver)
|
Credits
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