CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
EPSS
Percentile
75.8%
Developer and Mozilla community member Wladimir Palant reported that cookies marked HTTPOnly were readable by JavaScript via the XMLHttpRequest.getResponseHeader and XMLHttpRequest.getAllResponseHeaders APIs. This vulnerability bypasses the security mechanism provided by the HTTPOnly flag which intends to restrict JavaScript access to document.cookie.