Skip to content
mistakes.show
793Kissues on 68,769 sites
  1. Home
  2. Mistakes
  3. Outdated jQuery
SecurityImportant

Outdated jQuery

jQuery below 3.5 has known XSS vulnerabilities.

9%of Global websites

By market

  1. Global9%
  2. United Kingdom7.9%
  3. Netherlands6.4%
  4. Italy9.1%
  5. Spain9.2%
  6. Japan26%
  7. Latin America10%

How to fix

  1. 1Upgrade to the current jQuery 3.x (with jQuery Migrate if needed).
  2. 2Or remove jQuery if nothing needs it.

Our crawler: 68,769 sites · Global · updated Oct 23, 2026 · Methodology

Found mistakes on your site?

We can fix them in one sprint. Reply within one business day.