CVE-2003-1026

Exp

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: 2004-01-20 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2003-1026 is rated High Exploit Risk (83/100): CVSS Critical severity, with high exploitation likelihood (EPSS 55.82%, 98th percentile). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2003-1026

EDB-ID Source Kind Published Link
151 exploit_db edb 2004-02-04 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2003-1026

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-09-12 59.28% 55.82% -3.46%
2 2025-03-30 64.64% 59.28% -5.36%
3 2025-03-29 64.64%

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2003-1026

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
8.6 10.0 [email protected]

Weakness enumeration for CVE-2003-1026

Affected software / configurations for CVE-2003-1026

Vendor Product Version Raw CPE
microsoft ie 6.0 cpe:2.3:a:microsoft:ie:6.0:sp1:*:*:*:*:*:*
microsoft internet_explorer 5.0 cpe:2.3:a:microsoft:internet_explorer:5.0:*:*:*:*:*:*:*
microsoft internet_explorer 5.0.1 cpe:2.3:a:microsoft:internet_explorer:5.0.1:*:*:*:*:*:*:*
microsoft internet_explorer 5.0.1 cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp1:*:*:*:*:*:*
microsoft internet_explorer 5.0.1 cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp2:*:*:*:*:*:*
microsoft internet_explorer 5.0.1 cpe:2.3:a:microsoft:internet_explorer:5.0.1:sp3:*:*:*:*:*:*
microsoft internet_explorer 5.5 cpe:2.3:a:microsoft:internet_explorer:5.5:*:*:*:*:*:*:*
microsoft internet_explorer 5.5 cpe:2.3:a:microsoft:internet_explorer:5.5:sp1:*:*:*:*:*:*
microsoft internet_explorer 5.5 cpe:2.3:a:microsoft:internet_explorer:5.5:sp2:*:*:*:*:*:*
microsoft internet_explorer 6.0 cpe:2.3:a:microsoft:internet_explorer:6.0:*:*:*:*:*:*:*

References for CVE-2003-1026

URL Tags
http://marc.info/?l=bugtraq&m=106979349517578&w=2
http://marc.info/?l=bugtraq&m=107038202225587&w=2
http://www.kb.cert.org/vuls/id/784102 Third Party Advisory US Government Resource
http://www.safecenter.net/UMBRELLAWEBV4/BackToFramedJpu
http://www.us-cert.gov/cas/techalerts/TA04-033A.html US Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-004
https://exchange.xforce.ibmcloud.com/vulnerabilities/13846
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A630
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A643
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A687
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A689
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A745
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A774
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A805
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