CVE-2012-5823: n/a vulnerability

CVE-2012-5823: Open Source Classifieds does not verify that the server hostname matches a domain name in the subject's Com...

Open Source Classifieds 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-listedUpdatedSep 17, 2024, 03:08 UTC (UTC+00:00)

Security readout for executives and security teams

Open Source Classifieds may trust an HTTPS server without confirming the certificate belongs to the intended hostname. A network-positioned attacker could impersonate an SSL server using another valid certificate. The sources do not identify affected versions, a patch, or real-world exploitation. Exposure is likely limited to Open Source Classifieds deployments that make SSL/TLS connections through the affected fsockopen code path. The source bundle does not name versions, modules, default configuration, or reachable entry points, so asset owners must verify locally. Treat as a targeted confidentiality and integrity risk, not a broad emergency based on available evidence. Prioritize if Open Source Classifieds handles sensitive transactions or credentials over SSL integrations. The absence of version and patch details means verification is the immediate business action. Mitigation focus: Check Open Source Classifieds vendor or project guidance for fixed releases.; Upgrade or patch if an official fix is available.; Replace unsafe fsockopen TLS handling with hostname-verifying TLS APIs..

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

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

1Source 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

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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