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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 |