CVE-2026-13189 SpellChecker DictionaryLanguage Path Traversal Vulnerability in Telerik UI for ASP.NET AJAX

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...

CVE-2026-13189

CVE-2026-13189 affects Progress © Telerik® UI for AJAX (prior to v2026.2.708). The issue stems from insufficient validation of the language parameter in the spell check handler, which may allow an attacker to influence server-side file path resolution and trigger unintended server-side requests. ...