CVE-2009-4100

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-11-29 · updated 2026-06-16
Weakness: CWE-20

Description

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.

Affected products

Yoono: through 6.1.0; 2.0.2.474, 2.0.3.564, 2.0.4.641, 2.1.0.743, 2.2.1.1038, 3.0.0.1268 (+26)

References

http://secunia.com/advisories/37468
http://www.net-security.org/secworld.php?id=8527
http://www.securityfocus.com/bid/37123
http://www.vupen.com/english/advisories/2009/3326
https://addons.mozilla.org/en-US/firefox/addons/versions/1833#version-6.1.1
https://exchange.xforce.ibmcloud.com/vulnerabilities/54417
http://secunia.com/advisories/37468
http://www.net-security.org/secworld.php?id=8527
http://www.securityfocus.com/bid/37123
http://www.vupen.com/english/advisories/2009/3326
https://addons.mozilla.org/en-US/firefox/addons/versions/1833#version-6.1.1
https://exchange.xforce.ibmcloud.com/vulnerabilities/54417

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