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CVE-2006-6503

MEDIUM · CVSS 6.8EPSS 4.2%EU EUVD

Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, and SeaMonkey before 1.0.7 allows remote attackers to bypass cross-site scripting (XSS) protection by changing the src attribute of an IMG element to a javascript: URI.

Key facts

CVSS score
6.8 (v2.0)
Severity
MEDIUM
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness (CWE)
CWE-254
EPSS score
4.2% (91th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2006-6486)
Published
December 20, 2006
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2006-6486 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

  • canonical / ubuntu linux
  • canonical / ubuntu linux
  • canonical / ubuntu linux
  • debian / debian linux
  • debian / debian linux
  • mozilla / firefox
  • mozilla / seamonkey
  • mozilla / thunderbird

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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