CVE-2013-5042

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Summary

CVECVE-2013-5042
StatePUBLISHED
Assignermicrosoft
Source PriorityCVE Program / NVD first with legacy fallback
Published2013-12-11 00:55:03 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionCross-site scripting (XSS) vulnerability in Microsoft ASP.NET SignalR 1.1.x before 1.1.4 and 2.0.x before 2.0.1, and Visual Studio Team Foundation Server 2013, allows remote attackers to inject arbitrary web script or HTML via crafted Forever Frame transport protocol data, aka "SignalR XSS Vulnerability."

Risk And Classification

Primary CVSS: v2.0 4.3 from [email protected]

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

EPSS: 0.104140000 probability, percentile 0.932460000 (date 2026-04-29)

Problem Types: CWE-79 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Microsoft Asp.net Signalr 1.1.0 All All All
Application Microsoft Asp.net Signalr 1.1.1 All All All
Application Microsoft Asp.net Signalr 1.1.2 All All All
Application Microsoft Asp.net Signalr 1.1.3 All All All
Application Microsoft Asp.net Signalr 2.0.0 All All All
Application Microsoft Visual Studio Team Foundation Server 2013 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
ASP.NET SignalR Input Validation Flaw Permits Cross-Site Scripting Attacks - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
Microsoft Security Bulletin MS13-103 - Important | Microsoft Docs af854a3a-2127-422b-91ae-364da2661108 docs.microsoft.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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