← Vulnerability feed

Vulnerability record · CVE-2004-1133 · published 10 January 2005

CVE-2004-1133: Microsoft w3who.dll vulnerability

Microsoft · W3who.Dll

Multiple cross-site scripting (XSS) vulnerabilities in Microsoft W3Who ISAPI (w3who.dll) allow remote attackers to inject arbitrary HTML and web script via (1) HTTP headers such as "Connection" or (2) invalid parameters whose values are echoed in the resulting error message.

6.8 CVSS 2.0 Medium EPSS 9.8% · top 4.6%
6.8CVSS 2.0 base score
9.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
16 Jun 2026Last modified by NVD

Description

Multiple cross-site scripting (XSS) vulnerabilities in Microsoft W3Who ISAPI (w3who.dll) allow remote attackers to inject arbitrary HTML and web script via (1) HTTP headers such as "Connection" or (2) invalid parameters whose values are echoed in the resulting error message.

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

Affected products

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

References

Track CVE-2004-1133 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

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

Source: NIST National Vulnerability Database (record CVE-2004-1133), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.