What’s Vulnerable › Vulnerabilities

CVE-2011-2981

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2011-08-18 · updated 2026-06-16
• Weakness: CWE-16

Description

The event-management implementation in Mozilla Firefox before 3.6.20, SeaMonkey 2.x, Thunderbird 3.x before 3.1.12, and possibly other products does not properly select the context for script to run in, which allows remote attackers to bypass the Same Origin Policy or execute arbitrary JavaScript code with chrome privileges via a crafted web site.

Affected products

• Mozilla Firefox: through 3.6.19; 1.0, 1.0-preview_release, 1.0.1, 1.0.2, 1.0.3, 1.0.4 (+103)
• Mozilla Seamonkey: 2.0, 2.0-alpha_1, 2.0-alpha_2, 2.0-alpha_3, 2.0-beta_1, 2.0-beta_2 (+19)
• Mozilla Thunderbird: 3.0, 3.0.1, 3.0.2, 3.0.3, 3.0.4, 3.0.5 (+18)

References

• http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00023.html
• http://lists.opensuse.org/opensuse-security-announce/2011-08/msg00027.html
• http://www.debian.org/security/2011/dsa-2295
• http://www.debian.org/security/2011/dsa-2296
• http://www.debian.org/security/2011/dsa-2297
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:127
• http://www.mozilla.org/security/announce/2011/mfsa2011-30.html
• http://www.redhat.com/support/errata/RHSA-2011-1164.html
• https://bugzilla.mozilla.org/show_bug.cgi?id=614151
• https://bugzilla.mozilla.org/show_bug.cgi?id=643450
• https://bugzilla.mozilla.org/show_bug.cgi?id=650252
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14512

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