What’s Vulnerable › Vulnerabilities

CVE-2003-0513

• Severity: high (CVSS 7.5 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 9.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2004-04-15 · updated 2026-06-16

Description

Microsoft Internet Explorer allows remote attackers to bypass intended cookie access restrictions on a web application via "%2e%2e" (encoded dot dot) directory traversal sequences in a URL, which causes Internet Explorer to send the cookie outside the specified URL subsets, e.g. to a vulnerable application that runs on the same server as the target application.

Affected products

• Microsoft Ie: 6.0-sp1
• Microsoft Internet Explorer 11: 5.0.1, 5.0.1-sp1, 5.0.1-sp2, 5.0.1-sp3, 5.0.1-sp4, 5.5 (+3)

References

• http://archives.neohapsis.com/archives/vulnwatch/2004-q1/0056.html
• http://lists.grok.org.uk/pipermail/full-disclosure/2004-March/018475.html
• http://archives.neohapsis.com/archives/vulnwatch/2004-q1/0056.html
• http://lists.grok.org.uk/pipermail/full-disclosure/2004-March/018475.html

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