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mozillaMozilla FoundationMFSA2013-73
HistoryAug 06, 2013 - 12:00 a.m.

Same-origin bypass with web workers and XMLHttpRequest — Mozilla

2013-08-0600:00:00
Mozilla Foundation
www.mozilla.org
24

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

0.003 Low

EPSS

Percentile

68.7%

Mozilla community member Federico Lanusse reported a mechanism where a web worker can violate same-origin policy and bypass cross-origin checks through XMLHttpRequest. This could allow for cross-site scripting (XSS) attacks by web workers.

Affected configurations

Vulners
Node
mozillafirefoxRange<23
OR
mozillafirefox_esrRange<17.0.8
OR
mozillaseamonkeyRange<2.20
OR
mozillathunderbirdRange<17.0.8
OR
mozillathunderbird_esrRange<17.0.8

4.3 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

0.003 Low

EPSS

Percentile

68.7%