CVE-2023-4308

Summary

CVE-2023-4308 is a Stored Cross-Site Scripting (XSS) vulnerability affecting the User Submitted Posts plugin for WordPress. This issue, present in versions up to and including 20230809, allows unauthenticated attackers to inject malicious scripts into pages via the 'user-submitted-content' parameter. The lack of adequate input sanitization and output escaping in the plugin enables the execution of these scripts every time a user accesses an injected page. This vulnerability poses a significant risk to WordPress sites utilizing the User Submitted Posts plugin, making it crucial for users to update to a patched version as soon as possible.

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