Medium · published July 22, 2026
In Progress® Telerik® UI for AJAX prior to v2026.2.708, insufficient validation of content submitted to the RadEditor PDF export feature may allow an authenticated attacker to trigger server-side requests to arbitrary hosts, resulting in outbound network connections and potential exposure of Windows authentication credentials.
| Product | Versions | Fixed in |
|---|---|---|
| progress/telerik_ui_for_asp.net_ajax | ≥ 2008.31314, < 2026.2.708 | 2026.2.708 |