CVE-2026-13189

EUVD-2026-47694
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
ProgressSoftwareCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
progresstelerik_ui_for_asp.net_ajax
2011.2.712 ≤
𝑥
< 2026.2.708
CNA
Common Weakness Enumeration
References
https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-spellchecker-dictionarylanguage-path-traversal-CVE-2026-13189