CVE-2023-5560 is a Cross-Site Scripting (XSS) vulnerability affecting the WP-UserOnline WordPress plugin versions prior to 2.88.3. The flaw stems from insufficient sanitization and escaping of the X-Forwarded-For header, allowing unauthenticated attackers to inject malicious scripts. Rated Medium severity with a CVSS score of 6.1, this vulnerability requires user interaction (UI:R) but can be exploited remotely (AV:N) with low attack complexity (AC:L), potentially leading to information disclosure and integrity impacts. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.88.3CPE matchmatch criteria | cpe:2.3:a:lesterchan:wp-useronline:*:*:*:*:*:wordpress:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.