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Exploited vulnerability · CISA KEV

Is CVE-2020-11023 exploited? Yes: in CISA KEV since 23 Jan 2025

Gociux · JQuery · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2020-11023, JQuery Cross-Site Scripting (XSS) Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 23 Jan 2025, 1730 days after it was published. It affects JQuery. If you run it, CISA's required action is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 23 Jan 2025
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity6.9CVSS 3.1 · medium
US federal due13 Feb 2025BOD 22-01 deadline

What it is

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.

VendorJQuery (1 exploited CVE in KEV)
ProductJQuery
VulnerabilityJQuery Cross-Site Scripting (XSS) Vulnerability
WeaknessCWE-79
Published29 Apr 2020
Added to KEV23 Jan 2025
Reported by (CNA)GitHub_M

What to do

  1. Check whether you run it. Look for JQuery in your asset inventory, including appliances and cloud images. Stack check lists every exploited JQuery CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 29 Apr 2020.
  4. Get told next time. Email alerts when CISA adds a CVE for JQuery.

References

Questions

Is CVE-2020-11023 being exploited?

Yes. CISA added CVE-2020-11023 to the Known Exploited Vulnerabilities catalog on 23 Jan 2025, which means there is reliable evidence of exploitation in the wild.

Is CVE-2020-11023 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2020-11023?

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. Check JQuery's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected JQuery and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in January 2025 · act-now radar.

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