VULNERABILITY INTELLIGENCE
CVE-2012-5789
CVSS score5.8 MEDIUM
EPSS probability0.57%
CISA KEVNot currently listed
Published2012-11-04
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:P/I:P/A:N
Description
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.
Weakness classification
- CWE-20: Improper Input Validation