CORS Bypass Vulnerability in Mozilla Firefox

CVE-2015-4520 · MEDIUM Severity

AV:N/AC:L/AU:N/C:P/I:P/A:N

Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allow remote attackers to bypass CORS preflight protection mechanisms by leveraging (1) duplicate cache-key generation or (2) retrieval of a value from an incorrect HTTP Access-Control-* response header.

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