Final answer:
Content Security Policy (CSP) can be an effective security measure against Cross-Site Scripting (XSS) attacks in WordPress if implemented correctly, but it requires careful configuration and should be part of a broader security approach.
Step-by-step explanation:
Content Security Policy (CSP) is a security measure which can be used to mitigate the risk of Cross-Site Scripting (XSS) attacks in WordPress, among other web applications. WordPress is a popular content management system (CMS) and, like any other web application, can be vulnerable to XSS attacks. These attacks occur when malicious scripts are injected into web pages viewed by users.
A properly implemented CSP works by specifying which dynamic resources are allowed to load and execute on a website, effectively creating a whitelist of trusted content sources. This restricts a browser from executing XSS scripts that do not originate from allowed sources. While CSP is not a silver bullet and needs to be part of a broader security strategy, it can considerably reduce the risk of XSS attacks when configured correctly.
However, implementing CSP can be complex, and it requires careful planning to avoid inadvertently breaking legitimate functionality of your WordPress site. Additionally, CSP is best combined with other security practices such as regular updates, careful plugin management, and use of security plugins to strengthen overall site security against cyber threats.