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CVE-2021-41182 — XSS in org.webjars.npm:jquery-ui — CVE Details

MEDIUM

XSS in the `altField` option of the Datepicker widget in jquery-ui

Published October 26, 2021Updated July 8, 2026Source: osv

Summary

### Impact Accepting the value of the `altField` option of the Datepicker widget from untrusted sources may execute untrusted code. For example, initializing the datepicker in the following way: ```js $( "#datepicker" ).datepicker( { altField: "<img onerror='doEvilThing()' src='/404' />", } ); ``` will call the `doEvilThing` function. ### Patches 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. ### Workarounds A workaround is to not accept the value of the `altField` option from untrusted sources. ### For more information If you have any questions or comments about this advisory, search for a relevant issue in [the jQuery UI repo](https://github.com/jquery/jquery-ui/issues). If you don't find an answer, open a new issue.

Advisory Timeline

  • First published October 26, 2021 (1812 days ago).
  • Last revised July 8, 2026 — 1716 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Maven
Update org.webjars.npm:jquery-ui to 1.13.0 or later
<!-- Update pom.xml dependency version to 1.13.0 for org.webjars.npm:jquery-ui -->
Bundler
Update jquery-ui-rails to 7.0.0 or later
gem install jquery-ui-rails -v 7.0.0
npm
Update jquery-ui to 1.13.0 or later
npm install jquery-ui@1.13.0
NuGet
Update jQuery.UI.Combined to 1.13.0 or later
dotnet add package jQuery.UI.Combined --version 1.13.0

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (4)

Affects 4 ecosystems: maven (1), npm (1), nuget (1), rubygems (1).

PackageEcosystemAffectedFixed In
org.webjars.npm:jquery-ui
maven
1.10.4, 1.10.5, 1.12.0, 1.12.0-rc.2 (+3 more)1.13.0
jquery-ui-rails
rubygems
0.0.1, 0.0.2, 0.1.0, 0.2.0 (+33 more)7.0.0
jquery-ui
npm
All versions1.13.0
jQuery.UI.Combined
nuget
1.10.0, 1.10.1, 1.10.2, 1.10.3 (+29 more)1.13.0

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-79
    Cross-site Scripting (XSS)MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 6.5 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

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

References

Frequently Asked Questions

What is CVE-2021-41182?
XSS in the `altField` option of the Datepicker widget in jquery-ui This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 6.5/10).
How do I check if my project is affected by CVE-2021-41182?
CVE-2021-41182 affects org.webjars.npm:jquery-ui, jquery-ui-rails and jquery-ui (and 1 more). Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2021-41182 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
6.5

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

Also Known As

GHSA-9gj3-hwp5-pmwc
BIT-drupal-2021-41182

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