A Serious Flaw in React: What You Need to Know
Thu Dec 04 2025
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React, a popular JavaScript library, has a serious security flaw. This flaw is very dangerous. It allows hackers to run harmful code on websites that use React. The flaw is easy to exploit. Experts say that hackers will likely start using it soon.
The flaw affects several versions of React. It also affects some frameworks that use React. These include Next. js, react-router, and others. The React team has released updates to fix the flaw. They strongly recommend updating immediately.
This flaw is a big deal. Many big companies use React. These include Facebook, Instagram, Netflix, and Walmart. If these companies don't update, they could be at risk. Hackers could take control of their websites.
The flaw is related to how React handles data. Hackers can send special requests to a website. When React processes these requests, it can run harmful code. This is called remote code execution. It's a serious security issue.
The flaw was found by a researcher. They reported it to Meta, the company that created React. Meta worked quickly to fix the flaw. They released a patch just four days later. This is good news. But it's important to note that hackers could still find ways to exploit the flaw.
Experts say that this flaw is very dangerous. They recommend updating React as soon as possible. They also say that hackers are likely already looking for ways to exploit the flaw. So, it's important to act fast.
https://localnews.ai/article/a-serious-flaw-in-react-what-you-need-to-know-4273f873
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