Vulnerability Report

CVE-2012-5789

Title: Paypal Payments Standard Improper Input Validation

Input Validation Error

Proof Of Concept

No public PoC currently indexed for CVE-2012-5789.

CWE Category CWE-20
Published Date Nov 04, 2012
Modified Date Jun 16, 2026
Exploit Status Not Found
Score 5.8 CVSS v2.0
Exploit Probability (EPSS)
0.57%

Vulnerability Summary

CVE-2012-5789: 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.

Impacted Vendors

P
paypal 1

Reference Links

http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf https://exchange.xforce.ibmcloud.com/vulnerabilities/79912 http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf https://exchange.xforce.ibmcloud.com/vulnerabilities/79912
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
5.8
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:M/Au:N/C:P/I:P/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2012-5789 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector N/A
Complexity N/A
Privileges N/A
Interaction NONE
CVSS Vector String AV:N/AC:M/Au:N/C:P/I:P/A:N

Affected Stack

No specific products linked.