What’s Vulnerable › Vulnerabilities
CVE-2011-5239
- Severity: medium (CVSS 5.8 v2.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2012-11-06 · updated 2026-06-16
- Weakness: CWE-20
Description
CiviCRM 4.0.5 and 4.1.1 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.
Affected products
- CiviCRM: 4.0.5, 4.1.1
References
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