vulnerability
WordPress Plugin: custom-404-pro: CVE-2023-51540: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 6 | (AV:N/AC:L/Au:N/C:P/I:P/A:N) | Dec 27, 2023 | May 15, 2025 | Jul 10, 2025 |
Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:N)
Published
Dec 27, 2023
Added
May 15, 2025
Modified
Jul 10, 2025
Description
The Custom 404 Pro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via several logged parameters in all versions up to, and including, 3.10.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Solution
custom-404-pro-plugin-cve-2023-51540
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.