CVE-2026-106135— Cross-Site Scripting in Progress Software Kendo UI for Angular

Quick assessment

Affected

Progress Software Kendo UI for Angular

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Progress Software Kendo UI for Angular 中，版本早于 25.3.0 的 Chat 组件（@progress/kendo-angular-conversational-ui）存在跨站脚本（XSS）漏洞。低权限攻击者若能够提交聊天消息，可通过在"openUrl"快捷操作中嵌入不安全的 URL，诱使其他用户点击该操作，从而在目标用户的浏览器中执行任意 JavaScript 代码。

CVSS 5.4 · Medium Updated Nov 07, 2026

Possible ATT&CK Techniques 2 AI

T1059.007 · JavaScript T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

Cross-Site Scripting in Progress Software Kendo UI for Angular

Source: CVE Program / CVE List V5

Vulnerability Description

Cross-Site Scripting (XSS) in the Chat component (@progress/kendo-angular-conversational-ui) in Progress Software Kendo UI for Angular versions prior to 25.3.0 allows a low-privileged attacker who can supply Chat messages to execute arbitrary JavaScript in another user's browser via an unsafe URL in an openUrl quick action, which runs when the user clicks the action.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

在Web页面生成时对输入的转义处理不恰当(跨站脚本)

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Progress Software	Kendo UI for Angular	0 ~ 25.3.0	-

II. Public POCs for CVE-2026-106135

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-106135

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Other References for CVE-2026-106135 (1)

https://www.telerik.com/kendo-angular-ui/components/knowledge-base/kb-security-chat-xss-cve-2026-106135 vendor-advisory

https://www.cve.org/CVERecord?id=CVE-2026-106135

Same Patch Batch · Progress Software · 2026-11-06 · 11 CVEs total

CVE-2026-104657	7.5 HIGH	Missing Integrity Verification in Progress Software Fiddler Download & Setup Skill
CVE-2026-104656	7.3 HIGH	Cross-site Scripting in Progress Telerik Fiddler Everywhere
CVE-2026-106134	5.4 MEDIUM	Cross-Site Scripting in Progress Software KendoReact
CVE-2026-106143	5.4 MEDIUM	Cross-Site Scripting in Progress Software Kendo UI for Vue
CVE-2026-106136	5.4 MEDIUM	Cross-Site Scripting in Progress Software KendoReact
CVE-2026-106142	5.4 MEDIUM	Cross-Site Scripting in Progress Software KendoReact
CVE-2026-106141	5.4 MEDIUM	Cross-Site Scripting in Progress Software Kendo UI for Angular
CVE-2026-106128	4.1 MEDIUM	Prototype Pollution in Progress Software Kendo UI for Vue
CVE-2026-106144	4.1 MEDIUM	Prototype Pollution in Progress Software Kendo UI for Angular
CVE-2026-106127	4.1 MEDIUM	Prototype Pollution in Progress Software KendoReact

IV. Related Vulnerabilities

Same product: Kendo UI for Angular

Same vendor: Progress Software

Same weakness: CWE-79