CVE-2008-4066: mozilla firefox Cross-site Scripting
Vulnerability summary
CVE-2008-4066 is a medium (CVSS 4.3) Cross-site Scripting vulnerability in mozilla firefox. EPSS estimates a 1.76% chance of exploitation in the next 30 days, higher than 77.6% of scored vulnerabilities. 2 public exploits are recorded.
Advisory lineage
Upstream 0 · Downstream 4Timeline
- 24-09-2008PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
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."
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
1.76%
Chance of exploitation in the next 30 days
Percentile
78%
Versus all other CVEs
30-day change
0.00 pp
From 1.76% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (thespanner.co.uk)
Maturity: unknown
Exploit Reference (blogs.technet.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Mozilla1 product
- firefox2.0.0.14 | 2.0.0.15 | 2.0.0.16
1 vendor · 1 product
References
44 links- www.mozilla.org/security/announce/2008/mfsa2008-43.htmlX Refsource CONFIRM
- slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.405232Vendor AdvisoryX Refsource SLACKWARE
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8880VDB EntrySignatureX Refsource OVAL
- www.redhat.com/archives/fedora-package-announce/2008-September/msg01384.htmlVendor AdvisoryX Refsource FEDORA
Show all 44 references
- bugzilla.mozilla.org/show_bug.cgi?id=448166X Refsource CONFIRM
- slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.379422Vendor AdvisoryX Refsource SLACKWARE
- download.novell.com/Download?buildid=WZXONb-tqBw~X Refsource CONFIRM
- www.redhat.com/archives/fedora-package-announce/2008-September/msg01403.htmlVendor AdvisoryX Refsource FEDORA
- slackware.com/security/viewer.php?l=slackware-security&y=2008&m=slackware-security.412123Vendor AdvisoryX Refsource SLACKWARE