The Easy Social Feed – Social Photos Gallery – Post Feed – Like Box plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the data-caption and data-linktext parameters in all versions up to, and including, 6.6.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
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