{"id":"CVE-2012-5809","aliases":["EUVD-2012-5689","GHSA-2q35-gf6f-226r"],"status":"published","title":"The Groupon Redemptions application for Android does not verify that the server hostname matches...","description":"The Groupon Redemptions application for Android 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.","severity":{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.00566,"percentile":0.47266,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-310"],"published":"2012-11-04T22:00:00Z","modified":"2026-06-16T23:47:22Z","products":[{"vendor":"groupon","product":"groupon_merchants"}],"references":[{"url":"http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-5809"},{"url":"https://github.com/advisories/GHSA-2q35-gf6f-226r"}],"sources":{"cve":[{"id":"CVE-2012-5809","description":"The Groupon Redemptions application for Android 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.","status":"published","published":"2012-11-04T22:00:00Z","modified":"2024-09-17T01:30:35.446Z","updated_at":"2026-11-02T14:34:49.246229Z"}],"euvd":[{"id":"EUVD-2012-5689","description":"The Groupon Redemptions application for Android 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.","status":"published","published":"2012-11-04T22:00:00Z","modified":"2024-09-17T01:30:35Z","updated_at":"2026-11-03T00:28:49.329777Z"}],"ghsa":[{"id":"GHSA-2q35-gf6f-226r","title":"The Groupon Redemptions application for Android does not verify that the server hostname matches...","description":"The Groupon Redemptions application for Android 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.","status":"published","published":"2022-05-17T04:03:06Z","modified":"2023-01-28T05:01:04Z","updated_at":"2026-11-02T14:43:28.398824Z"}],"nvd":[{"id":"CVE-2012-5809","description":"The Groupon Redemptions application for Android 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.","status":"published","published":"2012-11-04T22:55:04.343Z","modified":"2026-06-16T23:47:22.773Z","cvss":[{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-310"],"updated_at":"2026-11-02T14:02:16.536025Z"}]}}