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Medium · 6.1 Scanner template Public exploit CVE-2023-2023 EUVD-2023-33550GHSA-2h88-qxq3-v97j

Custom 404 Pro < 3.7.3 - Reflected Cross-Site Scripting

Published May 30, 2023 · Updated Jan 9, 2025 · Assigned by WPScan

Category: Web / CMS

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.

Affected products

VendorProductAffectedFixed
— Custom 404 Pro < 3.7.3 3.7.3

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 2 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.

References