CVE-2006-2420

Name: CVE-2006-2420
Creator: NVD / NIST
Published: 2006-05-16T10:02:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.54%

Last modified Jun 16, 2026

CVE-2006-2420 is a vulnerability of currently unknown severity. Bugzilla 2.20rc1 through 2.20 and 2.21.1, when using RSS 1.0, allows remote attackers to conduct cross-site scripting (XSS) attacks via a title element with HTML encoded sequences such as ">", which are automatically decoded by some RSS readers. NOTE: this issue is not in Bugzilla itself, but rather due to design or documentation inconsistencies within RSS, or implementation vulnerabilities in RSS readers. EPSS estimates a 1.54% chance of exploitation in the next 30 days.

Description

Bugzilla 2.20rc1 through 2.20 and 2.21.1, when using RSS 1.0, allows remote attackers to conduct cross-site scripting (XSS) attacks via a title element with HTML encoded sequences such as ">", which are automatically decoded by some RSS readers. NOTE: this issue is not in Bugzilla itself, but rather due to design or documentation inconsistencies within RSS, or implementation vulnerabilities in RSS readers. While this issue normally would not be included in CVE, it is being identified since the Bugzilla developers have addressed it.

Metrics

EPSS Probability

1.54%

71.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Mozilla	Bugzilla	2.20
Mozilla	Bugzilla	2.21
Mozilla	Bugzilla	2.21.1

References

http://marc.info/?l=bugtraq&m=112818466125484&w=2
http://secunia.com/advisories/18979Patch, Vendor Advisory
http://www.bugzilla.org/security/2.18.4Patch, Vendor Advisory
http://www.osvdb.org/23379
https://bugzilla.mozilla.org/show_bug.cgi?id=313441Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/24820
http://marc.info/?l=bugtraq&m=112818466125484&w=2
http://secunia.com/advisories/18979Patch, Vendor Advisory
http://www.bugzilla.org/security/2.18.4Patch, Vendor Advisory
http://www.osvdb.org/23379
https://bugzilla.mozilla.org/show_bug.cgi?id=313441Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/24820

Timeline

Published: May 16, 2006
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2006-2420?

How severe is CVE-2006-2420?

Severity scoring for CVE-2006-2420 is pending analysis. The EPSS model estimates a 1.54% probability of exploitation in the next 30 days.

How do I fix CVE-2006-2420?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2006-2420?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST