Vulnerability DatabaseCVE-2026-13189
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CVE-2026-13189
Published:July 22, 2026
Updated:August 06, 2026
In Progress® Telerik® UI for AJAX prior to v2026.2.708, insufficient validation of the language parameter in the spell check handler may allow an attacker to influence server-side file path resolution and trigger unintended server-side requests.
Affected Packages
Progress.Sitefinity.Web.UI (DOT_NET):
Affected version(s) >=2025.3.825.462 <2026.2.708.462
Fix Suggestion:
Update to version 2026.2.708.462
progress.sitefinity.web.ui (NUGET):
Affected version(s) >=2025.3.825.462 <2026.2.708.462
Fix Suggestion:
Update to version 2026.2.708.462
Related Resources (1)
https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-spellchecker-dictionarylanguage-path-traversal-CVE-2026-13189
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Absolute Path Traversal
CWE-36
EPSS
Base Score:
0.34