CVE-2003-1157

Metaframe vulnerability

CVSS

4.3

EPSS

3.9%

EPSS pct

89th

Exploited

No known

Cross-site scripting (XSS) vulnerability in login.asp in Citrix MetaFrame XP Server 1.0 allows remote attackers to inject arbitrary web script or HTML via the NFuse_Message parameter.

Affected vendor

Citrix

Affected product

Metaframe

CVSS vector

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

Published

2003-12-31

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, medium attack complexity, requiring no authentication. Successful exploitation leads to partial impact to integrity.

Its EPSS score of 3.9% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2003-1157

Confirm whether Citrix Metaframe is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2003-1157.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2003-1157

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2003-1157 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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