What’s Vulnerable › Vulnerabilities

CVE-2009-4101

• Severity: critical (CVSS 9.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.6% 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

infoRSS 1.1.4.2 and earlier extension for Firefox performs certain operations with chrome privileges, which allows remote attackers to execute arbitrary commands and perform cross-domain scripting attacks via the description tag of an RSS feed.

Affected products

• Didier Ernotte Inforss: through 1.1.4.2; 0.5, 0.7.7, 0.8.4, 0.8.7, 0.8.8.1, 0.8.8.2 (+15)

References

• http://secunia.com/advisories/37467
• http://www.vupen.com/english/advisories/2009/3323
• https://addons.mozilla.org/en-US/firefox/addons/versions/361#version-1.2.0
• https://exchange.xforce.ibmcloud.com/vulnerabilities/54370
• http://secunia.com/advisories/37467
• http://www.vupen.com/english/advisories/2009/3323
• https://addons.mozilla.org/en-US/firefox/addons/versions/361#version-1.2.0
• https://exchange.xforce.ibmcloud.com/vulnerabilities/54370

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