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Vulnerabilities

Vulnerability · CVE-2020-11023

JQuery Cross-Site Scripting (XSS) Vulnerability

Published Apr 29, 2020 · catalog updated Jun 16, 2026 · JQuery JQuery

Patch now

CVE-2020-11023 is in the CISA known-exploited catalog, due Feb 13, 2025. Confirm JQuery JQuery against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
Medium6.1
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
84.89%
Remediation
Remediation guidance
Affected products
cpe debian/debian linux · cpe drupal/drupal · cpe fedoraproject/fedora · cpe jquery/jquery · cpe netapp/h300s firmware · cpe netapp/h500s firmware

In jQuery versions greater than or equal to 1.0.3 and before 3.5.0, passing HTML containing 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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe debian/debian linux9.0
  • cpe drupal/drupalversion unspecified
  • cpe fedoraproject/fedora31
  • cpe fedoraproject/fedora32
  • cpe fedoraproject/fedora33
  • cpe jquery/jqueryversion unspecified
  • cpe netapp/h300s firmwareversion unspecified
  • cpe netapp/h500s firmwareversion unspecified
  • cpe netapp/h700s firmwareversion unspecified
  • cpe oracle/application expressversion unspecified
  • vendor JQuery JQueryversion unspecified

How to fix CVE-2020-11023

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2020-11023 is in the CISA known-exploited catalog, due Feb 13, 2025. Confirm JQuery JQuery against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with debian/debian linux 9.0. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

What should an analyst verify?

CWE-79: Cross-site Scripting (XSS). EPSS 84.89%. The CISA KEV listing is the exploitation evidence. A public exploit reference is linked in Sources. That is not the same as confirmed exploitation. Use the source links for the original advisory.

Technology hubs

Drupal security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 29, 2020 · Catalog

    Detected

    In jQuery versions greater than or equal to 1.0.3 and before 3.5.0, passing HTML containing 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.

  2. Jan 23, 2025 · CISA KEV

    Known exploited

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

  3. Feb 13, 2025 · CISA KEV

    Remediation due

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

  4. Jun 16, 2026 · Catalog

    Updated

    In jQuery versions greater than or equal to 1.0.3 and before 3.5.0, passing HTML containing 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.

Sources

  • CISA KEVConfirmed exploitationCVE-2020-11023

    JQuery contains a persistent cross-site scripting (XSS) vulnerability. When passing maliciously formed, untrusted input enclosed in HTML tags, JQuery's DOM manipulators can execute untrusted code in the context of the user's browser.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2020-11023

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2020-11023

    30-day exploitation probability 84.9%

    first.org
  • Exploit DatabasePublic exploit reference49767

    Public archive entry. The exploit body is not stored here.

    exploit-db.com
  • NIST NVDVulnerability recordCVE-2020-11023

    In jQuery versions greater than or equal to 1.0.3 and before 3.5.0, passing HTML containing 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 pro

    nvd.nist.gov
  • Packet Storm SecurityCited referencehttp://packetstormsecurity.com/files/162160/jQuery-1.0.3-Cross-Site-Scripting.html

    Packet Storm link already published on the finding.

    packetstormsecurity.com
  • VulnCheck KEVConfirmed exploitationCVE-2020-11023

    JQuery contains a persistent cross-site scripting (XSS) vulnerability. When passing maliciously formed, untrusted input enclosed in HTML tags, JQuery's DOM manipulators can execute untrusted code in the context of the user's browser.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.