CVE-2020-11023 JQuery JQuery: web page flaw
In plain words: A web app can be made to act on someone's behalf or reach places it should not. Stolen sessions, actions taken as the victim, or access to internal systems.
Confirmed exploited by CISA on · US federal patch deadline Feb 13, 2025
What to do
- Install JQuery's security update for JQuery. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Keep a list of every internet-facing server you run so nothing is forgotten.
- Patch anything in this catalog first, ahead of normal patch cycles.
- Put admin and file-transfer apps behind a VPN or single sign-on instead of the open internet.
Who is affected
Work IT. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.
What's at risk: Mass data theft and ransomware: a single flaw in a file-transfer or email server has exposed thousands of organisations at once.
The details
- Official name
- JQuery Cross-Site Scripting (XSS) Vulnerability
- Product
- JQuery JQuery
- CISA 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.
- Type of flaw
- Web page flaw (CWE-79)
- Confirmed exploited
- Jan 23, 2025
- US federal patch deadline
- Feb 13, 2025
Ask Cleus about it
Ask about a vulnerability, an update, a weird message, or the news. Plain-word answers, free, no account.
Answering about CVE-2020-11023 ·
Questions about CVE-2020-11023
Is CVE-2020-11023 being exploited?
Yes. CISA added CVE-2020-11023 to its Known Exploited Vulnerabilities catalog on Jan 23, 2025, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2020-11023?
Install JQuery's security update for JQuery. If no update exists, follow the vendor's workaround or stop using the product until one ships. Keep a list of every internet-facing server you run so nothing is forgotten.
Am I affected by CVE-2020-11023?
Only if you use JQuery JQuery. Aimed mostly at company systems — you are affected through the companies you use, not your own phone.