Is CVE-2012-5789 being actively exploited?

CVE-2012-5789 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-5789?

CVE-2012-5789 has a CVSS 2.0 base score of 5.8 (MEDIUM).

CVE-2012-5789

MEDIUM · CVSS 5.8EPSS 0.6%EU EUVD

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.

Key facts

CVSS score: 5.8 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:P/I:P/A:N
Weakness (CWE): CWE-20
EPSS score: 0.6% (47th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2012-5669)
Published: November 4, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-5669 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

paypal / payments standard

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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