CVE-2008-4066
MEDIUM · CVSS 4.3EPSS 1.8%EU EUVD
Mozilla Firefox 2.0.0.14, and other versions before 2.0.0.17, allows remote attackers to bypass cross-site scripting (XSS) protection mechanisms and conduct XSS attacks via HTML-escaped low surrogate characters that are ignored by the HTML parser, as demonstrated by a "jav�ascript" sequence, aka "HTML escaped low surrogates bug."
Key facts
- CVSS score
- 4.3 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:P/A:N- Weakness (CWE)
- CWE-79
- EPSS score
- 1.8% (78th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2008-4051)
- Published
- September 24, 2008
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2008-4051 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- mozilla / firefox
- mozilla / firefox
- mozilla / firefox
References
- http://blogs.technet.com/bluehat/archive/2008/08/14/targeted-fuzzing.aspx(Exploit)
- http://download.novell.com/Download?buildid=WZXONb-tqBw~
- http://jvn.jp/en/jp/JVN96950482/index.html
- http://jvndb.jvn.jp/ja/contents/2011/JVNDB-2011-000058.html
- http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00005.html
- http://secunia.com/advisories/31984(Vendor Advisory)
- http://secunia.com/advisories/31985(Vendor Advisory)
- http://secunia.com/advisories/32007(Vendor Advisory)
- http://secunia.com/advisories/32010(Vendor Advisory)
- http://secunia.com/advisories/32012(Vendor Advisory)
- http://secunia.com/advisories/32025(Vendor Advisory)
- http://secunia.com/advisories/32042(Vendor Advisory)
- http://secunia.com/advisories/32044(Vendor Advisory)
- http://secunia.com/advisories/32082(Vendor Advisory)
- http://secunia.com/advisories/32092(Vendor Advisory)
- http://secunia.com/advisories/32144(Vendor Advisory)
- http://secunia.com/advisories/32185
- http://secunia.com/advisories/32196
- http://secunia.com/advisories/32845(Vendor Advisory)
- http://secunia.com/advisories/34501(Vendor Advisory)
- http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.379422
- http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.405232
- http://slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.412123
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-256408-1
- http://www.debian.org/security/2008/dsa-1649
- http://www.debian.org/security/2008/dsa-1669
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:205
- http://www.mandriva.com/security/advisories?name=MDVSA-2008:206
- http://www.mozilla.org/security/announce/2008/mfsa2008-43.html
- http://www.redhat.com/support/errata/RHSA-2008-0882.html(Vendor Advisory)
- http://www.redhat.com/support/errata/RHSA-2008-0908.html(Vendor Advisory)
- http://www.securityfocus.com/bid/31346
- http://www.securitytracker.com/id?1020920
- http://www.thespanner.co.uk/2008/06/30/javascript-protocol-fuzz-results/(Exploit)
- http://www.ubuntu.com/usn/usn-645-1
- http://www.ubuntu.com/usn/usn-645-2
- http://www.ubuntu.com/usn/usn-647-1
- http://www.vupen.com/english/advisories/2008/2661(Vendor Advisory)
- http://www.vupen.com/english/advisories/2009/0977(Vendor Advisory)
- https://bugzilla.mozilla.org/show_bug.cgi?id=448166
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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