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Last updated: 3/5/2015 7:33:32 PM

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National Cyber Awareness System

Vulnerability Summary for CVE-2009-4100

Original release date: 11/29/2009
Last revised: 12/19/2009


Yoono extension before 6.1.1 for Firefox performs certain operations with chrome privileges, which allows user-assisted remote attackers to execute arbitrary commands and perform cross-domain scripting attacks via DOM event handlers such as onload.


CVSS Severity (version 2.0):
CVSS v2 Base Score: 9.3 (HIGH) (AV:N/AC:M/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore: 10.0
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
Per info from the following advisory: http://www.net-security.org/secworld.php?id=8527 Raised the score to CIA:complete NVD received information from Yoono development team on December 4, 2009 that the affected versions are in fact 6.1.0 and previous. NVD adjusted affected versions accordingly because of this new information.


NVD received information from Yoono development team on December 4, 2009 that the fixed version is in fact 6.1.1. A patch can be found at the following URL: https://addons.mozilla.org/en-US/firefox/addons/versions/1833

References to Advisories, Solutions, and Tools

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External Source: BID
Name: 37123
External Source: MISC
Name: http://www.net-security.org/secworld.php?id=8527
External Source: VUPEN
Name: ADV-2009-3326
Type: Advisory
External Source: XF
Name: yoonoo-domevent-xss(54417)
External Source: CONFIRM
Name: https://addons.mozilla.org/en-US/firefox/addons/versions/1833#version-6.1.1

Technical Details

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