CVE-2003-1025

medium Microsoft
CVSS v3 Base Score
4.3
AV:N/AC:M/Au:N/C:N/I:P/A:N
EPSS Score
64.2%
Exploitation probability in 30 days
Top 2% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
M
Confidentiality
None
Integrity
P
Availability
None
Published: January 20, 2004 (8150 days ago)
Last Modified: April 16, 2026
Vendor: Microsoft
Source: NVD

Description

Internet Explorer 5.01 through 6 SP1 allows remote attackers to spoof the domain of a URL via a "%01" character before an @ sign in the user@domain portion of the URL, which hides the rest of the URL, including the real site, in the address bar, aka the "Improper URL Canonicalization Vulnerability."

CWE

CWE-20

Affected Products

microsoft internet explorer

References

🔗 www.kb.cert.org 🔗 www.securityfocus.com 🔗 www.us-cert.gov 🔗 www.zapthedingbat.com 🔗 docs.microsoft.com