CVE-2012-5788: n/a vulnerability

CVE-2012-5788: The PayPal IPN utility does not verify that the server hostname matches a domain name in the subject's Comm...

The PayPal IPN utility 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 use of the PHP fsockopen function.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 21:14 UTC (UTC+00:00)

Security readout for executives and security teams

This is a certificate-checking weakness in a PayPal IPN utility. If an attacker can intercept the connection, the utility may accept a valid certificate for the wrong hostname, letting the attacker impersonate the SSL server. Sources do not identify current affected versions, a patch, or active exploitation. Likely limited to legacy PHP applications using the referenced PayPal IPN utility or similar copied IPN validation code. The source bundle lists affected vendor, product, and versions as n/a, so exposure must be confirmed by code review. Treat as a targeted payment-integration review, not a broad emergency. Prioritize systems handling PayPal IPN because a successful interception could undermine transaction validation. Urgency depends on whether legacy code is still deployed. Mitigation focus: Inventory applications that process PayPal IPN messages.; Replace legacy IPN utility code with currently supported vendor guidance.; Ensure TLS validation checks hostname against CN or subjectAltName..

Prepared: Jun 24, 2026, 12:04 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Nov 4, 2012, 22:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
paypal-ipn-utility-spoofing(79982)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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