CVE-2026-19219
DialogHandler UploadPaths Tampering Vulnerability in Telerik UI for ASP.NET AJAX
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.
INFO
Published Date :
Sept. 2, 2026, 11:17 a.m.
Last Modified :
Sept. 2, 2026, 1:17 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | f9fea0b6-671e-4eea-8fde-31911902ae05 | ||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Telerik UI for AJAX to version 2026.3.812 or later.
- Apply vendor patches or updates promptly.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-19219.
| URL | Resource |
|---|---|
| https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-dialoghandler-uploadpaths-tampering-cve-2026-19219 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-19219 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-19219
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-19219 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-19219 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 02, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-19219', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-02T12:45:28.309859Z'} -
New CVE Received by [email protected]
Sep. 02, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-345 Added CWE CWE-434 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/19xxx/CVE-2026-19219.json">CVE-2026-19219</a> Added Reference https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-dialoghandler-uploadpaths-tampering-cve-2026-19219