What’s Vulnerable › Vulnerabilities

CVE-2012-5787

• Severity: medium (CVSS 5.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2012-11-04 · updated 2026-06-16
• Weakness: CWE-20

Description

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.

Affected products

• PayPal Merchant Sdk: all versions

References

• http://secunia.com/advisories/51184
• http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf
• http://www.securityfocus.com/bid/56445
• https://exchange.xforce.ibmcloud.com/vulnerabilities/79913
• https://github.com/paypal/SDKs/commit/5f2d6dd77fb4211dcde34e36f1864234526c5d64
• http://secunia.com/advisories/51184
• http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf
• http://www.securityfocus.com/bid/56445
• https://exchange.xforce.ibmcloud.com/vulnerabilities/79913
• https://github.com/paypal/SDKs/commit/5f2d6dd77fb4211dcde34e36f1864234526c5d64

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