CVE-2023-2023— Custom 404 Pro < 3.7.3 - Reflected Cross-Site Scripting
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I. Basic Information for CVE-2023-2023
Vulnerability Information
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Vulnerability Title
Custom 404 Pro < 3.7.3 - Reflected Cross-Site Scripting
Source: NVD (National Vulnerability Database)
Vulnerability Description
The Custom 404 Pro WordPress plugin before 3.7.3 does not escape some URLs before outputting them in attributes, leading to Reflected Cross-Site Scripting.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
WordPress plugin Custom 404 Pro 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress plugin是一个应用插件。 WordPress plugin Custom 404 Pro 3.7.3 版本之前存在跨站脚本漏洞，该漏洞源于在将用户输入信息输出到属性之前不会转义某些 URL，从而导致反射式跨站点脚本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Unknown | Custom 404 Pro | 0 ~ 3.7.3 | - |
II. Public POCs for CVE-2023-2023
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | HW2023@POC@EXP@CVE-2023-2023 | https://github.com/thatformat/Hvv2023 | POC Details |
| 2 | None | https://github.com/druxter-x/PHP-CVE-2023-2023-2640-POC-Escalation | POC Details |
| 3 | 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. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-2023.yaml | POC Details |
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- https://wpscan.com/vulnerability/8859843a-a8c2-4f7a-8372-67049d6ea317exploitvdb-entrytechnical-description
- https://nvd.nist.gov/vuln/detail/CVE-2023-2023
Same Patch Batch · Unknown · 2023-05-30 · 18 CVEs total
| CVE-2023-2288 | Otter - Gutenberg Blocks < 2.2.6 - Author+ PHAR Deserialization | |
| CVE-2023-2256 | Product Addons & Fields for WooCommerce < 32.0.7 - Reflected Cross-Site Scripting | |
| CVE-2023-2470 | Add to Feedly <= 1.2.11 - Admin+ Stored XSS | |
| CVE-2023-0733 | Newsletter Popup <= 1.2 - Unauthenticated Stored XSS | |
| CVE-2023-1524 | Download Manager < 3.2.71 - Broken Access Controls | |
| CVE-2023-2518 | Easy Forms for Mailchimp < 6.8.9 - Reflected XSS | |
| CVE-2023-2113 | Autoptimize < 3.1.7 - Admin+ Stored Cross-Site Scripting via Settings Import | |
| CVE-2023-0329 | Elementor Website Builder < 3.12.2 - Admin+ SQLi | |
| CVE-2023-1938 | WP Fatest Cache < 1.1.5 - Blind SSRF via CSRF | |
| CVE-2023-2111 | HollerBox < 2.1.4 - Admin+ SQL Injection | |
| CVE-2022-4676 | OSM – OpenStreetMap <= 6.01 - Contributor+ Stored XSS via Shortcode | |
| CVE-2023-2287 | Orbit Fox < 2.10.24 - Author+ Server-Side Request Forgery | |
| CVE-2023-2117 | Image Optimizer by 10web < 1.0.27 - Admin+ Path Traversal | |
| CVE-2023-0443 | AnyWhere Elementor < 1.2.8 - Freemius API Key Disclosure | |
| CVE-2023-0766 | Newsletter Popup <= 1.2 - Record Deletion via CSRF | |
| CVE-2023-2223 | Login Rebuilder < 2.8.1 - Admin+ Stored XSS | |
| CVE-2023-2296 | Loginizer 1.7.8 - Reflected XSS |
IV. Related Vulnerabilities
Same product: Custom 404 Pro
- CVE-2025-62880
WordPress Custom 404 Pro plugin <= 3.12.0 - Cross Site Reque - CVE-2025-9947
Custom 404 Pro <= 3.12.0 - Authenticated (Administrator+) SQ - CVE-2024-39646
WordPress Custom 404 Pro plugin <= 3.11.1 - Reflected Cross - CVE-2023-51540
WordPress Custom 404 Pro Plugin <= 3.10.0 is vulnerable to C - CVE-2023-32740
WordPress Custom 404 Pro Plugin <= 3.8.1 is vulnerable to Cr
Same vendor: Unknown
- CVE-2026-6433
Custom CSS JS PHP <= 2.0.7 - Unauthenticated SQL Injection t - CVE-2026-4935
SureTriggers < 1.1.23 – Unauthenticated SQLi - CVE-2026-5335
Magic Export & Import < 1.2.0 - Unauthenticated PII Disclosu - CVE-2026-5337
Frontend File Manager Plugin <= 23.6 - Subscriber+ Arbitrary - CVE-2026-5306
Check & Log Email < 2.0.13 - Unauthenticated Stored XSS
V. Comments for CVE-2023-2023
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