CVE-2021-41184Public exploitNetwork attack vector

Cross-site scripting via HTML-interpreted position target

Published Oct 26, 2021 · Updated Nov 4, 2025

Cross-site scripting in jQuery UI before 1.13.0 allows remote attackers to execute untrusted JavaScript through the position utility. The .position() method passes a string from its of option directly to jQuery's constructor, which interprets HTML-like input and creates executable DOM nodes. Exploitation requires an application to feed attacker-controlled text into that option and user interaction to run the affected browser-side path.

CVSS severity6.5
Medium
EPSS probability40.77%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in jQuery UI before 1.13.0 allows remote attackers to execute untrusted JavaScript through the position utility. The .position() method passes a string from its of option directly to jQuery's constructor, which interprets HTML-like input and creates executable DOM nodes. Exploitation requires an application to feed attacker-controlled text into that option and user interaction to run the affected browser-side path.

The record

CVE
CVE-2021-41184
Published
Oct 26, 2021
Updated
Nov 4, 2025
Vendor
OpenJS Foundation
Product
jQuery UI
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 26, 2021CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.13.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenJS Foundation · jQuery UIversion=< 1.13.0

Published CVSS scores

6.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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