{"id":"CVE-2017-11357","title":"Progress Telerik UI for ASP.NET AJAX before R2 2017 SP2 does not properly restrict user input to RadAsyncUpload, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.","summary":"Progress Telerik UI for ASP.NET AJAX before R2 2017 SP2 does not properly restrict user input to RadAsyncUpload, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.","severity":"critical","cvss":9.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-434","CWE-434"],"vendor":"progress","product":"telerik_ui_for_asp.net_ajax","affected":["telerik_ui_for_asp.net_ajax < 2020.1.114"],"patched":["telerik_ui_for_asp.net_ajax 2020.1.114"],"published":"2017-08-23","updated":"2026-08-14","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2017-11357","references":[{"url":"http://www.telerik.com/support/kb/aspnet-ajax/upload-%28async%29/details/insecure-direct-object-reference","label":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/43874/","label":"cve@mitre.org"},{"url":"http://www.telerik.com/support/kb/aspnet-ajax/upload-%28async%29/details/insecure-direct-object-reference","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/43874/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-11357","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","kev","in-the-wild","exploit-available"],"epss":0.77679,"epssPercentile":0.99556,"kev":true,"kevDateAdded":"2023-01-26","kevDueDate":"2023-02-16","kevRansomware":true,"exploited":true,"exploitAvailable":true,"ingestedAt":"2026-08-14T06:15:27.508Z","exploits":{"exploitdb":true,"checkedAt":"2026-09-21T15:23:35.791Z"},"slug":"CVE-2017-11357","body":"## Overview\n\nProgress Telerik UI for ASP.NET AJAX before R2 2017 SP2 does not properly restrict user input to RadAsyncUpload, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.\n\n## Affected\n\n- `telerik_ui_for_asp.net_ajax < 2020.1.114`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `telerik_ui_for_asp.net_ajax 2020.1.114`","depth":"hadal","depthScore":99,"depthScoreParts":{"impact":53.9,"likelihood":15.5,"exploitation":25,"ransomware":5},"changes":[]}