CVE-2023-4779
CVSS 3.1 Score 9.0 of 10 (high)
Details
Published Sep 6, 2023
Updated: Nov 7, 2023
CWE ID 79
Summary
CVE-2023-4779 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 20230811, stems from insufficient sanitization and output escaping of user-supplied attributes in the [usp_gallery] shortcode's 'before' attribute. Authenticated attackers with contributor-level permissions or higher can exploit this flaw to inject malicious web scripts, which will execute whenever an end user accesses an injected page.
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