6.1

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2023-3691

CVE-2023-3691: layui vulnerable to cross-site scripting

A vulnerability, which was classified as problematic, was found in layui up to v2.8.0-rc.16. This affects an unknown part of the component HTML Attribute Handler. The manipulation of the argument title leads to cross site scripting. It is possible to initiate the attack remotely. Upgrading to version 2.8.0 is able to address this issue. It is recommended to upgrade the affected component. The identifier VDB-234237 was assigned to this vulnerability.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2023-3691

CVE-2023-3691:

6.1

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
layui	npm	< 2.8.0	2.8.0

Technical Details

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Root Cause Analysis

The vulnerability stems from improper output encoding of the 'title' attribute in UI components. Evidence from the Gitee issue I7HDXZ shows that user-controlled 'title' values were rendered without using Layui's util.escape() method. The form module's checkbox rendering logic (and potentially other component renderers) would be responsible for handling HTML attribute values. The fix in v2.8.0 likely added sanitization to these rendering functions, as indicated by the recommendation to use util.escape in the issue discussion. While exact code diffs aren't available, the component/argument specificity in vulnerability reports and Layui's architecture strongly implicate the form rendering functions.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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