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The Vulnerability:
The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘esi’ shortcode in versions up to, and including, 5.6.
Makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
The Discover:
István Márton, wordfence security researcher.
The Solution:
Update LiteSpeed Cache patched the vulnerability in version 5.7, released to WordPress.org on October 10.
The References:
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