CVE-2025-3573 jquery-validation vulnerable to Cross-site Scripting
An attacker can execute arbitrary scripts via XSS in the showLabel function using user-controlled placeholder values in the jQuery Validation library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-3573?
CVE-2025-3573 is a medium-severity cross-site scripting vulnerability in jquery-validation, published on 15 Apr 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Versions of the package jquery-validation before 1.20.0 are vulnerable to Cross-site Scripting (XSS) in the showLabel() function, which may take input from a user-controlled placeholder value. This value will populate a message via $.validator.messages in a user localizable dictionary.
Weakness: CWE-79
Which versions are affected by CVE-2025-3573?
2 open source packages ship an affected version, including jquery-validation.
| Package | Affected | Fixed in |
|---|---|---|
jquery-validation npm | All versions | 1.20.0 |
jquery-validation npm | All versions | 1.20.0 |
How do I fix CVE-2025-3573?
Upgrade jquery-validation to 1.20.0 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-3573 being exploited?
There is no known exploitation of CVE-2025-3573 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2025-3573, GHSA-rrj2-ph5q-jxw2, UBUNTU-CVE-2025-3573.