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CISA KEV · Known exploitedMedium

CVE-2020-11023

JQuery

In jQuery versions greater than or equal to 1.0.3 and before 3.5.0, passing HTML containing <option> elements from untrusted sources - even after sanitizing it - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code. This problem is patched in jQuery 3.5.0.

CVSS
6.1
EPSS
83.8%
99.7% percentile
CISA KEV
Listed
Published
2020.04.30
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability83.8%
Technical severityCVSS 6.1

Vulnerability overview

In jQuery versions greater than or equal to 1.0.3 and before 3.5.0, passing HTML containing <option> elements from untrusted sources - even after sanitizing it - to one of jQuery's DOM manipulation methods (i.e. .html(), .append(), and others) may execute untrusted code. This problem is patched in jQuery 3.5.0.

Affected product and versions

Product
JQuery
Affected versions
>= 1.0.3, < 3.5.0, >= 1.0.3 < 3.5.0, 9.0, 31, 32, 33, >= 7.0 < 7.70, >= 8.7.0 < 8.7.14, >= 8.8.0 < 8.8.6, < 20.2, 13.3.0.1, >= 2.7.0 <= 2.8.0, >= 2.4.0 <= 2.10.0, < 21.1.2, 21.1.2, 5.9.0.0.0, 12.1.1, >= 16.1.0 <= 16.4.0, 8.1.1, 8.2.0
Fixed versions
3.5.0, 7.70, 8.7.14, 8.8.6, 20.2, 21.1.2, 9.2.5.0, 2.12.41, 6.0.9

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Due date: 2025.02.13
  1. 1
    Identify

    Confirm that JQuery and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE
CWE-79
KEV added
2025.01.23
Ransomware use
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