CVE-2026-19219: progress software telerik ui for asp.net ajax
Vulnerability summary
CVE-2026-19219 is a high (CVSS 8.1) vulnerability in progress software telerik ui for asp.net ajax. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 4.5% of scored vulnerabilities.
Timeline
- 02-09-2026PublishedVulnerability first disclosed.
- 03-09-2026Last modifiedVulnerability information updated.
Description
In Progress® Telerik® UI for AJAX prior to v2026.3.812, insufficient integrity protection of dialog request parameters used by the RadEditor file browser may allow an attacker who has obtained certain application encryption key material to alter the folders the file browser reads from, writes to, and uploads into, potentially resulting in remote code execution.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.16%
Chance of exploitation in the next 30 days
Percentile
5%
Versus all other CVEs
30-day change
0.00 pp
From 0.16% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-345Insufficient Verification of Data AuthenticityThe product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
- CWE-434Unrestricted Upload of File with Dangerous TypeThe product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
Affected systems
Progress software1 product
- telerik ui for asp.net ajax≥ 2011.2.712, < 2026.3.812
1 vendor · 1 product
References
1 links- www.telerik.com/products/…Vendor Advisory