XSS in Drupal
CVE-2020-11023
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.849 (99.7th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.849 · newest: 0.849 · change: 0.000
Affected products
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Public proof-of-concept exploits
- honeyb33z/cve-2020-11023-scanner
- Cybernegro/CVE-2020-11023
- GarlicB/jquery35-local-agent
- Snorlyd/https-nj.gov---CVE-2020-11023
- asoka666/Cve-2020-11023
- towaos/towaos-lab-cve-2020-11023
- andreassundstrom/cve-2020-11023-demonstration
- AssassinUKG/XSSPlayground
- Chiku014/vulnerability-scanner
- DanielRuf/snyk-js-jquery-565129
References
- www.debian.org/security/2020/dsa-4693 (vendor-advisory, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory, Mailing List, Third Party Advisory)
- www.oracle.com/security-alerts/cpujul2020.html (Third Party Advisory)
- jquery.com/upgrade-guide/3.5/ (Release Notes, Vendor Advisory)
- security.netapp.com/advisory/ntap-20200511-0006/ (Third Party Advisory)
- www.drupal.org/sa-core-2020-002 (Third Party Advisory)
- github.com/jquery/jquery/security/advisories/GHSA-jpcq-cgw6-v4j6 (Third Party Advisory)
- blog.jquery.com/2020/04/10/jquery-3-5-0-released (Release Notes, Vendor Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-07/msg00067.html (vendor-advisory, Broken Link)
- security.gentoo.org/glsa/202007-03 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-11023?
- CVE-2020-11023 is a medium-severity vulnerability in Drupal, classified under Cross-site Scripting. CVSS score: 6.9/10. Published 2020-04-29.
- How severe is CVE-2020-11023?
- Medium severity. CVSS v3 base score is 6.9 out of 10.
- Is CVE-2020-11023 known to be exploited?
- Yes. CVE-2020-11023 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2025-01-23), indicating it is being actively exploited. 67 public proof-of-concept repositories are indexed.