CVE-2020-11023

CVE-2020-11023 is a medium-severity vulnerability in Jquery with a CVSS 3.x base score of 6.9. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2025-01-23). The underlying weakness is classified as CWE-79.

Key facts

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2020-11023?
CVE-2020-11023 has a CVSS 3.x base score of 6.9, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2020-11023 being actively exploited?
Yes. CVE-2020-11023 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-01-23, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2020-11023?
CVE-2020-11023 primarily affects Jquery. In total, 76 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-11023?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2020-11023 have an EU (EUVD) identifier?
Yes. CVE-2020-11023 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-0387. It is also flagged as exploited in the EUVD (since 2025-01-23).
When was CVE-2020-11023 published?
CVE-2020-11023 was published on 2020-04-29 and last updated on 2026-06-17.

References

Affected products (76)

More vulnerabilities in Jquery

All CVEs affecting Jquery →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE: