{"id":"CVE-2013-5042","url":"https://www.cyber-defence.io/tools/cve/CVE-2013-5042","generatedAt":"2026-10-27T18:48:20.182Z","title":"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…","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.\"","published":"2013-12-11T00:55:04.000Z","lastModified":"2026-06-16T23:58:18.000Z","status":"Modified","sourceIdentifier":"secure@microsoft.com","cvss":{"version":"2.0","score":4.3,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N"},"cwe":["CWE-79"],"affected":["microsoft/asp.net signalr","microsoft/visual studio team foundation server"],"epss":{"score":0.11688,"percentile":0.96032,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 11.7%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"http://www.securitytracker.com/id/1029463","source":"secure@microsoft.com"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-103","source":"secure@microsoft.com"},{"url":"http://www.securitytracker.com/id/1029463","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-103","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2013-5042","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}