WP-UserOnline: Cross-site scripting
WP-UserOnline is affected by cross-site scripting. The vulnerable path is reachable without authentication. Injected script can execute in the affected site's origin when the vulnerable output is viewed.
- Component
- WP-UserOnline
- Plugin slug
wp-useronline- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Nov 27, 2023
This CVE was published Nov 27, 2023 and is one of 3 known issues for this plugin.
Update, patch or deactivate.
Update WP-UserOnline to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical 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.
NVD vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N