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CWE-20

13,734 CVEs • Abstraction: Class • Likelihood of Exploit: High

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

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CVEs (13,734)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Prestashop
2Ebay
Prestashop
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
The PayPal module in PrestaShop does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers...Show more
The PayPal module in PrestaShop does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, related to use of the PHP fsockopen function.Show less
1Prestashop
2Ebay Module
Prestashop
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
The eBay module in PrestaShop does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to...Show more
The eBay module in PrestaShop does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.Show less
2Prestashop
Presto Changeo
2Canadapost
Prestashop
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
The Canada Post (aka CanadaPost) module in PrestaShop does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in...Show more
The Canada Post (aka CanadaPost) module in PrestaShop does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, related to use of the PHP fsockopen function.Show less
2Oscommerce
Paypal
2Oscommerce
Payflow Pro Express Checkout
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
The PayPal Pro PayFlow EC module in osCommerce does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-mi...Show more
The PayPal Pro PayFlow EC module in osCommerce does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.Show less
2Brian Burton
Oscommerce
2Oscommerce
Paypal Pro Payflow Module
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
The PayPal Pro PayFlow module in osCommerce does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middl...Show more
The PayPal Pro PayFlow module in osCommerce does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.Show less
2Oscommerce
Paypal
2Oscommerce
Paypal Pro
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
The PayPal Pro module in osCommerce does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attack...Show more
The PayPal Pro module in osCommerce does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.Show less
2Akunamachata
Oscommerce
2Oscommerce
Paypal Express Module
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
The PayPal Express module in osCommerce does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle at...Show more
The PayPal Express module in osCommerce does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.Show less
2Moneybookers
Oscommerce
2Moneybookers
Oscommerce
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
The MoneyBookers module in osCommerce does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle atta...Show more
The MoneyBookers module in osCommerce does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.Show less
2Harald Ponce De Leon
Oscommerce
2Authorize.net
Oscommerce
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
The Authorize.Net module in osCommerce does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle att...Show more
The Authorize.Net module in osCommerce does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.Show less
2Oscommerce
Sagepay
2Oscommerce
Sage Pay Direct Module
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
The Sage Pay Direct module in osCommerce does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle a...Show more
The Sage Pay Direct module in osCommerce does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.Show less
1Paypal
1Invoicing
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
PayPal Invoicing does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL se...Show more
PayPal Invoicing does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.Show less
1Paypal
1Payments Standard
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
PayPal Payments Standard PHP Library 20120427 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-mid...Show more
PayPal Payments Standard PHP Library 20120427 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, related to misinterpretation of a certain TRUE value.Show less
1Paypal
1Payments Standard
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
PayPal Payments Standard PHP Library before 20120427 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-...Show more
PayPal Payments Standard PHP Library before 20120427 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, related to intentional disabling of certificate-validation checks through a "FALSE" value.Show less
1Paypal
1Ipn
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
The PayPal IPN utility does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof...Show more
The PayPal IPN utility does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, related to use of the PHP fsockopen function.Show less
1Paypal
1Merchant Sdk
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
The PayPal merchant SDK does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof...Show more
The PayPal merchant SDK does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.Show less
1Apache
1Cxf
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
The wsdl_first_https sample code in distribution/src/main/release/samples/wsdl_first_https/src/main/ in Apache CXF before 2.7.0 does not verify that the server hostname matches a domain name in the subject's Common Name...Show more
The wsdl_first_https sample code in distribution/src/main/release/samples/wsdl_first_https/src/main/ in Apache CXF before 2.7.0 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate. NOTE: The vendor states that the sample had specifically used a flag to bypass the DN checkShow less
1Apache
1Axis2
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
Apache Axis2/Java 1.6.2 and earlier does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attack...Show more
Apache Axis2/Java 1.6.2 and earlier does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.Show less
2Apache
Paypal
5Activemq
AxisMass Pay+2 more
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
Apache Axis 1.4 and earlier, as used in PayPal Payments Pro, PayPal Mass Pay, PayPal Transactional Information SOAP, the Java Message Service implementation in Apache ActiveMQ, and other products, does not verify that th...Show more
Apache Axis 1.4 and earlier, as used in PayPal Payments Pro, PayPal Mass Pay, PayPal Transactional Information SOAP, the Java Message Service implementation in Apache ActiveMQ, and other products, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.Show less
1Amazon
1Flexible Payments Service
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
Amazon Flexible Payments Service (FPS) PHP Library does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-th...Show more
Amazon Flexible Payments Service (FPS) PHP Library does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, related to misinterpretation of a certain "true" value.Show less
1Amazon
1Elastic Load Balancing
Apr 29, 2026
Nov 4, 2012
N/A· v4
N/A· v3
5.8 MEDIUM· v2
Amazon Elastic Load Balancing API Tools does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle at...Show more
Amazon Elastic Load Balancing API Tools does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, related to overriding the default JDK X509TrustManager.Show less