SARA / Free Tools / KEV / CVE-2020-11023

CVE-2020-11023 on CISA KEV

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 cod

CISA KEV — Actively Exploited

JQuery Cross-Site Scripting (XSS) Vulnerability

Vendor / Product
— / JQuery / JQuery
Added to KEV
2025-01-23
BOD 22-01 due
2025-02-13
Ransomware use
Unknown
CVSS / EPSS
6.9 MEDIUM · EPSS 54.37%

01What CISA says about this vulnerability

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.

02Required action — verbatim from CISA

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

03Notes & references

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

VendorProductVersions
jqueryjQuery>= 1.0.3, < 3.5.0

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

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