What’s Vulnerable › Vulnerabilities

CVE-2006-1731

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2006-04-14 · updated 2026-06-16
• Weakness: CWE-79

Description

Mozilla Firefox and Thunderbird 1.x before 1.5 and 1.0.x before 1.0.8, Mozilla Suite before 1.7.13, and SeaMonkey before 1.0 returns the Object class prototype instead of the global window object when (1) .valueOf.call or (2) .valueOf.apply are called without any arguments, which allows remote attackers to conduct cross-site scripting (XSS) attacks.

Affected products

• Mozilla Firefox: through 1.0.7; 1.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5 (+4)
• Mozilla Suite: through 1.7.12; 1.7.6, 1.7.7, 1.7.8, 1.7.10, 1.7.11
• Mozilla Seamonkey: through 1.0; 1.0
• Mozilla Thunderbird: through 1.0.7; 1.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5 (+4)

References

• http://lists.suse.com/archive/suse-security-announce/2006-Apr/0003.html
• http://secunia.com/advisories/19631
• http://secunia.com/advisories/19696
• http://secunia.com/advisories/19714
• http://secunia.com/advisories/19721
• http://secunia.com/advisories/19729
• http://secunia.com/advisories/19746
• http://secunia.com/advisories/19759
• http://secunia.com/advisories/19780
• http://secunia.com/advisories/19794

Get alerted when CVE-2006-1731 or the next vulnerability affects your stack