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CVE-2023-5560 The WP-UserOnline WordPress plugin before 2.88.3 does not sanitise and escape the X-Forwarded-For header before…

Description

The WP-UserOnline WordPress plugin before 2.88.3 does not sanitise and escape the X-Forwarded-For header before outputting its content on the page, which allows unauthenticated users to perform Cross-Site Scripting attacks.

Affected products and versions

Product Affected versions Fixed in
WP-UserOnline 2.88 earliest → < 2.88.3 2.88.3
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