CVE-2009-4102

Severity: critical (CVSS 9.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.4% 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

Sage 1.4.3 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

Mozilla Firefox: all versions
Sage.Mozdev Sage: through 1.4.3; 1.3.8

References

http://forums.mozillazine.org/viewtopic.php?f=48&t=1603515&start=0
http://jvn.jp/en/jp/JVN99203127/index.html
http://jvndb.jvn.jp/jvndb/JVNDB-2011-000070
http://secunia.com/advisories/37466
http://www.debian.org/security/2009/dsa-1951
http://www.net-security.org/secworld.php?id=8527
http://www.securityfocus.com/bid/37120
http://www.vupen.com/english/advisories/2009/3324
https://exchange.xforce.ibmcloud.com/vulnerabilities/54396
http://forums.mozillazine.org/viewtopic.php?f=48&t=1603515&start=0
http://jvn.jp/en/jp/JVN99203127/index.html
http://jvndb.jvn.jp/jvndb/JVNDB-2011-000070

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