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Weekly Signal
Live intelligence Updated 20 Aug 2026 · 23:28 UTC

Debian, Drupal, Fedoraproject +4 more · Debian Linux, Drupal, Fedora +49 more

CVE-2020-11023

JQuery Cross-Site Scripting (XSS) Vulnerability

Recommended action

Validate affected assets and exposure now, then remediate on an accelerated schedule. Oracle Security patch Cpujul2021

View response plan
CVSS6.1
EPSS83.8%
KEVYes
ExploitationConfirmed exploitation
RemediationExplicit patch identified ↓

Assessment

Why it matters

CISA lists this vulnerability as known to be exploited; exploitation is confirmed; EPSS is 83.8%; technical severity is CVSS 6.1.

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.

Who should care

  • Teams operating Debian Linux, Drupal, Fedora +49 more
  • Vulnerability and exposure management teams
  • Security operations teams monitoring exploitation activity

Response plan

What I would do

  1. Confirm whether Debian Linux, Drupal, Fedora +49 more is present in the environment.
  2. Identify affected versions and establish whether vulnerable services are exposed or reachable.
  3. Oracle Security patch Cpujul2021
  4. Review relevant security telemetry for evidence of attempted or successful exploitation.
  5. Document the remediation decision and track it to verified completion.

Treatment intelligence

Remediation intelligence

Not yet verified

Vendor sources are listed before government and third-party guidance. Confirm product applicability and change prerequisites before deployment.

Verification noteAutomated link verification has not completed for this guidance yet.

Patch

Upgrade

Advisory

Required Action

Technical details

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CWE
CWE-79
Affected versions
Debian Debian Linux (Version 9.0); Drupal Drupal (Start Including 7.0, End Excluding 7.70 | Start Including 8.7.0, End Excluding 8.7.14 | Start Including 8.8.0, End Excluding 8.8.6); Fedoraproject Fedora (Version 31 | Version 32 | Version 33); JQuery JQuery (Start Including 1.0.3, End Excluding 3.5.0); Netapp Active Iq Unified Manager (Version - | Version - | Version -); Netapp Cloud Backup (Version -); Netapp Cloud Insights Storage Workload Security Agent (Version -); Netapp H300e Firmware (Version -)
Fixed versions
Drupal Drupal (Fixed from 7.70, 8.7.14, 8.8.6); JQuery JQuery (Fixed from 3.5.0); Oracle Application Express (Fixed from 20.2); Oracle Blockchain Platform (Fixed from 21.1.2); Oracle Jd Edwards Enterpriseone Orchestrator (Fixed from 9.2.5.0); Oracle Jd Edwards Enterpriseone Tools (Fixed from 9.2.5.0); Oracle Oss Support Tools (Fixed from 2.12.41); Tenable Log Correlation Engine (Fixed from 6.0.9)
Published
29 April 2020
Attack vector
Network
Privileges required
None
User interaction
Required

Signal timeline

  1. CVE published
  2. Added to CISA KEV
  3. Latest EPSS score: 83.8%
  4. Signal calculated at 79

External references

Live public intelligence This assessment combines public-source evidence. Validate the affected product, version and exposure against your own environment before making a risk decision.