CVE-2020-11022Public exploitNetwork attack vector

Script execution via htmlPrefilter tag rewriting

Published Apr 29, 2020 · Updated Apr 13, 2026

Cross-site scripting in jQuery 1.12.0 through 3.4.1 allows remote attackers to execute script via untrusted HTML passed to DOM methods. The htmlPrefilter method rewrites self-closing tags with a regular expression before parsing, which can transform sanitized markup into executable HTML. Exploitation requires an application to pass attacker-controlled HTML into an affected DOM manipulation method and a user to render the resulting content.

CVSS severity6.9
Medium
EPSS probability99.22%
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 1.12.0 through 3.4.1 allows remote attackers to execute script via untrusted HTML passed to DOM methods. The htmlPrefilter method rewrites self-closing tags with a regular expression before parsing, which can transform sanitized markup into executable HTML. Exploitation requires an application to pass attacker-controlled HTML into an affected DOM manipulation method and a user to render the resulting content.

The record

CVE
CVE-2020-11022
Published
Apr 29, 2020
Updated
Apr 13, 2026
Vendor
jQuery
Product
jQuery
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 29, 2020CVE publishedPublication date reported by the CVE source.
  2. Apr 13, 2026Record 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=>= 1.12.0, < 3.5.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

jQuery · jQueryversion=>= 1.12.0, < 3.5.0

Published CVSS scores

6.9GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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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