Vulnerability record · CVE-2012-5805 · published 4 November 2012
CVE-2012-5805: Paypal instant payment notification improper input validation vulnerability
Paypal · Instant Payment Notification
The PayPal IPN functionality in Zen Cart 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, a different vulnerability than CVE-2012-5806.
Description
The PayPal IPN functionality in Zen Cart 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, a different vulnerability than CVE-2012-5806.
AV:N/AC:M/Au:N/C:P/I:P/A:N
Affected products
2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf | Exploit |
| http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf | Exploit |
Track CVE-2012-5805 inside VULONE
Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.
Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2012-5805), CISA KEV, FIRST EPSS (scores of 2026-10-17). This page is refreshed as NVD updates the record.
