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HIGH · 7.5

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...

Vulnerability Description

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.

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
ProgressTelerik Ui For Asp.Net Ajax>= 2011.2712, < 2026.2.708

Related Weaknesses (CWE)

CWE-36

References

FAQ

What is CVE-2026-13189?

CVE-2026-13189 is a vulnerability with a CVSS score of 7.5 (HIGH). 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...

How severe is CVE-2026-13189?

CVE-2026-13189 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-13189?

Check the references section above for vendor advisories and patch information. Affected products include: Progress Telerik Ui For Asp.Net Ajax.