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Nov
2

The LiteSpeed Plugin Vulnerability Affected 4 Million Websites

The popular LiteSpeed WordPress plugin recently addressed a serious vulnerability that left over 4 million websites at risk of compromise. The vulnerability, discovered by Wordfence, was a Cross-Site Scripting (XSS) vulnerability within the LiteSpeed plugin, which is widely used as a caching plugin for WordPress. XSS vulnerabilities exploit the lack of a security process called data sanitization and escaping, which filter the files that can be uploaded through legitimate inputs like contact forms. In the case of this vulnerability, the implementation of a shortcode functionality allowed hackers to upload malicious scripts by bypassing the necessary security protocols. 

 

 

However, Search Engine Journal points out that this specific vulnerability requires the hacker to obtain contributor-level permissions, making it more complex than other unauthenticated threats. To mitigate this risk, LiteSpeed Cache users should update their plugin to version 5.7 or higher, which was released on October 10, 2023. It is crucial for website owners to take action promptly to protect their sites from potential exploitation.

 

Sources:
– Wordfence: www.wordfence.com/blog/4-million-wordpress-sites-affected-by-stored-cross-site-scripting-vulnerability-in-litespeed-cache-plugin

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