CVE-2013-5042

Name: CVE-2013-5042
Creator: NVD / NIST
Published: 2013-12-11T00:55:03.803+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 11.69%

Last modified Jun 16, 2026

CVE-2013-5042 is a vulnerability of currently unknown severity. Cross-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.". EPSS estimates a 11.69% chance of exploitation in the next 30 days.

Description

Cross-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."

Metrics

EPSS Probability

11.69%

95.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Microsoft	Asp.Net Signalr	1.1.0
Microsoft	Asp.Net Signalr	1.1.1
Microsoft	Asp.Net Signalr	1.1.2
Microsoft	Asp.Net Signalr	1.1.3
Microsoft	Asp.Net Signalr	2.0.0
Microsoft	Visual Studio Team Foundation Server	2013

References

Timeline

Published: Dec 11, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-5042?

How severe is CVE-2013-5042?

Severity scoring for CVE-2013-5042 is pending analysis. The EPSS model estimates a 11.69% probability of exploitation in the next 30 days.

How do I fix CVE-2013-5042?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-5042?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST