Cross-site scripting (XSS) vulnerability in Microsoft ASP.NET SignalR 1.1.x before 1.1.4…
Priority LOW 34CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- None · Partial · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
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."
Why it matters now
EPSS 0.11688 96th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:asp.net_signalr:1.1.0:*:*:*:*:*:*:* | 1.1.0 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:asp.net_signalr:1.1.1:*:*:*:*:*:*:* | 1.1.1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:asp.net_signalr:1.1.2:*:*:*:*:*:*:* | 1.1.2 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:asp.net_signalr:1.1.3:*:*:*:*:*:*:* | 1.1.3 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:asp.net_signalr:2.0.0:*:*:*:*:*:*:* | 2.0.0 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:visual_studio_team_foundation_server:2013:*:*:*:*:*:*:* | 2013 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:asp.net_signalr:1.1.0:*:*:*:*:*:*:* Versions 1.1.0 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:asp.net_signalr:1.1.1:*:*:*:*:*:*:* Versions 1.1.1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:asp.net_signalr:1.1.2:*:*:*:*:*:*:* Versions 1.1.2 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:asp.net_signalr:1.1.3:*:*:*:*:*:*:* Versions 1.1.3 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:asp.net_signalr:2.0.0:*:*:*:*:*:*:* Versions 2.0.0 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:visual_studio_team_foundation_server:2013:*:*:*:*:*:*:* Versions 2013 Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2013-5042
- 2026-10-03 Alias added: GHSA-c432-wcvr-52mf
References
Advisory 1
Sources
- CVE-2013-5042 · CVE Program
- CVE-2013-5042 · NVD
- FIRST EPSS
- GHSA-c432-wcvr-52mf · GitHub Advisory Database · CC BY 4.0
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