Path Traversal in Progress Telerik Ui For Asp.net Ajax
CVE-2026-13189
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.
EPSS: 0.005 (43.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Progress Telerik_ui_for_asp.net_ajax
- Progress Software Telerik Ui For Asp.net Ajax — versions 2011.2.712
Weakness classification (CWE)
References
- security@progress.com (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-13189?
- CVE-2026-13189 is a high-severity vulnerability in Progress Telerik Ui For Asp.net Ajax, classified under Absolute Path Traversal. CVSS score: 7.5/10. Published 2026-07-22.
- How severe is CVE-2026-13189?
- High severity. CVSS v3 base score is 7.5 out of 10.