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CVE-2021-41182— XSS in the `altField` option of the Datepicker widget

Quick assessment

Affected
jquery jquery-ui
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

jQuery是美国John Resig个人开发者的一套开源、跨浏览器的JavaScript库。该库简化了HTML与JavaScript之间的操作，并具有模块化、插件扩展等特点。 jQuery-UI 1.13.0之前版本存在跨站脚本漏洞，攻击者可以通过"altField"选项的值执行任意代码。

CVSS 6.5 · Medium EPSS 39.36% · P99

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-41182

Vulnerability Information
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Vulnerability Title
XSS in the `altField` option of the Datepicker widget
Source: CVE Program / CVE List V5
Vulnerability Description
jQuery-UI is the official jQuery user interface library. Prior to version 1.13.0, accepting the value of the `altField` option of the Datepicker widget from untrusted sources may execute untrusted code. The issue is fixed in jQuery UI 1.13.0. Any string value passed to the `altField` option is now treated as a CSS selector. A workaround is to not accept the value of the `altField` option from untrusted sources.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/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
Vulnerability Title
jQuery 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
jQuery是美国John Resig个人开发者的一套开源、跨浏览器的JavaScript库。该库简化了HTML与JavaScript之间的操作，并具有模块化、插件扩展等特点。 jQuery-UI 1.13.0之前版本存在跨站脚本漏洞，攻击者可以通过"altField"选项的值执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
jquery jquery-ui < 1.13.0 -

II. Public POCs for CVE-2021-41182

# POC Description Source Link Shenlong Link
1 None https://github.com/aredspy/CVE-2021-41182 POC Details
2 Some test files to make a good nuclei template for a JQuery UI XSS vuln https://github.com/aredspy/CVE-2021-41182-Tester POC Details
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III. Intelligence Information for CVE-2021-41182

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Patches & Fixes for CVE-2021-41182 (1)

Vendor Advisories for CVE-2021-41182 (4)

Mailing List Discussions for CVE-2021-41182 (7)

Security Blog Posts for CVE-2021-41182 (1)

Other References for CVE-2021-41182 (3)

Same Patch Batch · jquery · 2021-10-26 · 3 CVEs total

CVE-2021-41183 6.5 MEDIUM XSS in `*Text` options of the Datepicker widget
CVE-2021-41184 6.5 MEDIUM XSS in the `of` option of the `.position()` util

IV. Related Vulnerabilities

Same product: jquery-ui
Same vendor: jquery
Same weakness: CWE-79

V. Comments for CVE-2021-41182

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