Is CVE-2020-11023 actively exploited?

Yes. CVE-2020-11023 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2020-11023 be exploited remotely?

The attack vector of CVE-2020-11023 has not been classified yet.

What is the CVSS score of CVE-2020-11023?

CVE-2020-11023 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2020-11023

HIGHCISA KEVIN THE WILD

CVE-2020-11023

Published: January 23, 2025

EPSS:36.28%probability of exploitation in 30 daysPercentile:97.0th

Official Description

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.

NVD Source

CISA KEV Advisory

JQuery Cross-Site Scripting (XSS) Vulnerability

Added to KEV: 2025-01-23Federal patch deadline: 2025-02-13

Required Action (CISA)

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

Risk Analysis

This JQuery vulnerability is a persistent cross-site scripting (XSS) flaw that allows untrusted input enclosed in HTML tags to execute code in the user's browser. Its confirmed exploitation by CISA (is_in_kev: true) and high EPSS score of 0.36278 indicate a significant and urgent risk.

This vulnerability is actively being exploited in the wild and is part of the CISA Known Exploited Vulnerabilities Catalog. This confirms that attackers are successfully leveraging this flaw for XSS attacks.

Recommended Action

Update JQuery to a patched version. Ensure all user-supplied input is properly sanitized before being rendered in HTML to prevent XSS.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2020-11023 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2020-11023 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.

Exploit & PoC Resources

ACTIVE EXPLOITATIONConfirmed exploitation in the wild

Exploit-DB

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

PacketStorm

Security advisories & exploits

External links open in a new tab. Always verify in a controlled environment before use.

News & Research Mentioning CVE-2020-11023

CODESYS in Festo Automation Suite

CISA Alerts· Mar 17, 2026

View CSAF Summary 3. TECHNICAL DETAILS The following versions of CODESYS in Festo Automation Suite are affected: FESTO Software Festo Automation Suite (versions prior to 2.8.0.138) installed with CODESYS Software CODESYS Development System (3.0) vers:all/* FESTO Software Festo Automation Suite (versions prior to 2.8.0.138) installed with CODESYS Software CODESYS Development System (3.5.16.10) vers:all/* FESTO Software Festo Automation Suite (2.8.0.137) installed with CODESYS Software CODESYS Development System (3.0) vers:all/* FESTO Software Festo Automation Suite (2.8.0.137) installed with CODESYS Software CODESYS Development System (3.5.16.10) vers:all/* CVSS Vendor Equipment Vulnerabilities v3 9.8 FESTO, CODESYS CODESYS in Festo Automation Suite D [xlite_meta score:79 src:CISA Alerts xlite_fp:17fca52d9c8a749f3ecbaf32eff92f14e856489804a56a18cc6c0d7f4acd2a9d]