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CVE-2003-1026

Internet Explorer 5.01 through 6 SP1 allows remote attackers to bypass zone restrictions via a javascript protocol URL in a sub-frame, which is added to the history list and executed in the top window's zone when the history.back (back) function is called, as demonstrated by BackToFramedJpu, aka the "Travel Log Cross Domain Vulnerability."

Published: Jan 20, 2004 Modified: Jun 16, 2026
CWE-264

CVSS Metrics

Affected Products (10)

Vendor Product Version
microsoft ie 6.0
microsoft internet_explorer 5.0
microsoft internet_explorer 5.0.1
microsoft internet_explorer 5.0.1
microsoft internet_explorer 5.0.1
microsoft internet_explorer 5.0.1
microsoft internet_explorer 5.5
microsoft internet_explorer 5.5
microsoft internet_explorer 5.5
microsoft internet_explorer 6.0

GitHub Security Advisory GHSA-vh66-78r7-g63j

Internet Explorer 5.01 through 6 SP1 allows remote attackers to bypass zone restrictions via a...

Risk Scores

CVSS Score 9.3 / 10
EPSS Score 39.21%

Top 2% most likely to be exploited

Threat Score 49 / 100

Data Sources

NVD EPSS GitHub