CVE-2006-6506

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: yes
Published: 2006-12-20 · updated 2026-06-16

Description

The "Feed Preview" feature in Mozilla Firefox 2.0 before 2.0.0.1 sends the URL of the feed when requesting favicon.ico icons, which results in a privacy leak that might allow feed viewing services to determine browsing habits.

Affected products

Mozilla Firefox: 2.0

References

http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c00771742
http://secunia.com/advisories/23282
http://secunia.com/advisories/23545
http://secunia.com/advisories/23589
http://secunia.com/advisories/23614
http://secunia.com/advisories/23672
http://security.gentoo.org/glsa/glsa-200701-02.xml
http://securitytracker.com/id?1017421
http://www.legroom.net/modules.php?op=modload&name=News&file=article&sid=215
http://www.mozilla.org/security/announce/2006/mfsa2006-75.html
http://www.novell.com/linux/security/advisories/2006_80_mozilla.html
http://www.novell.com/linux/security/advisories/2007_06_mozilla.html

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