Vulnerability · Published Nov 27, 2023 · Assigned by WPScan
CVE-2023-5560WP-UserOnline < 2.88.3 - Unauthenticated Stored XSS
Medium 6.1
In plain English
A medium-severity security flaw in WP-UserOnline from Unknown. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).
Severity (CVSS NVD)6.1Medium
Exploit odds (30 days)0.5%top 56.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | WP-UserOnline | 0 – before 2.88.3 |
References
- https://wpscan.com/vulnerability/55d23184-fc5a-4090-b079-142407b59b05 exploit, vdb-entry, technical-description