CVE-2006-2420

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.

• CWE-79

• 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

Published

May 16, 2006

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2006-2414Directory traversal vulnerability in Dovecot 1.0 beta and 1.…
• CVE-2006-2415Multiple cross-site scripting (XSS) vulnerabilities in FlexC…
• CVE-2006-2416SQL injection vulnerability in class2.php in e107 0.7.2 and …
• CVE-2006-2417Cross-site scripting (XSS) vulnerability in phpMyAdmin 2.8.0…
• CVE-2006-2418Cross-site scripting (XSS) vulnerabilities in certain versio…
• CVE-2006-2419Cross-site scripting (XSS) vulnerability in index.php in Dir…
• CVE-2006-2421Stack-based buffer overflow in Pragma FortressSSH 4.0.7.20 a…
• CVE-2006-2422phpCOIN 1.2.3 and earlier stores messages based upon e-mail …
• CVE-2006-2423Cross-site scripting (XSS) vulnerability in ftplogin/index.p…
• CVE-2006-2424PHP remote file inclusion vulnerability in ezUserManager 1.6…
• CVE-2006-2425Multiple cross-site scripting (XSS) vulnerabilities in PRV.p…
• CVE-2006-2426Sun Java Runtime Environment (JRE) 1.5.0_6 and earlier, JDK …