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Vulnerability record · CVE-2004-0203 · published 23 November 2004

CVE-2004-0203: Microsoft exchange server cross-site scripting vulnerability

Microsoft · Exchange Server

Cross-site scripting (XSS) vulnerability in Outlook Web Access for Exchange Server 5.5 Service Pack 4 allows remote attackers to insert arbitrary script and spoof content in HTML email or web caches via an HTML redirect query.

4.3 CVSS 2.0 Medium EPSS 21% · top 2.5% CWE-79 · Cross-site scripting
4.3CVSS 2.0 base score
21%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
16 Jun 2026Last modified by NVD

Description

Cross-site scripting (XSS) vulnerability in Outlook Web Access for Exchange Server 5.5 Service Pack 4 allows remote attackers to insert arbitrary script and spoof content in HTML email or web caches via an HTML redirect query.

AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.kb.cert.org/vuls/id/948750 Third Party AdvisoryUS Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-026 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/16583 Third Party AdvisoryVDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2016 Third Party Advisory
http://www.kb.cert.org/vuls/id/948750 Third Party AdvisoryUS Government Resource
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-026 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/16583 Third Party AdvisoryVDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2016 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2004-0203), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.