Vulnerability DatabaseCVE-2026-2878
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CVE-2026-2878
Published:February 25, 2026
Updated:September 22, 2026
In Progress® Telerik® UI for AJAX, versions prior to 2026.1.225, an insufficient entropy vulnerability exists in RadAsyncUpload, where a predictable temporary identifier, based on timestamp and filename, can enable collisions and file content tampering.
Affected Packages
Progress.Sitefinity.Web.UI (DOT_NET):
Affected version(s) >=2011.3.1115.40 <2026.1.225
Fix Suggestion:
Update to version 2026.1.225
progress.sitefinity.web.ui (NUGET):
Affected version(s) >=2025.3.825.462 <2026.1.421.462
Fix Suggestion:
Update to version 2026.1.421.462
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CVSS v4
Base Score:
6
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
EPSS
Base Score:
0.18