CVE-2023-4271

Summary

CVE-2023-4271 is a vulnerability affecting the Photospace Responsive plugin for WordPress. It allows authenticated attackers with administrator-level permissions to inject stored cross-site scripts via the 'psres_button_size' parameter. This occurs due to insufficient input sanitization and output escaping. The impact of this vulnerability is significant, as it enables attackers to execute arbitrary web scripts on pages that users access. It is important to note that this issue only impacts multi-site installations and installations where unfiltered_html has been disabled.

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