CVE-2024-39646 - CVE House

Status published High CVE-2024-39646

WordPress Custom 404 Pro plugin <= 3.11.1 - Reflected Cross Site Scripting (XSS) vulnerability

7.1 CVSS

Vulnerability Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Kunal Custom 404 Pro custom-404-pro.This issue affects Custom 404 Pro: from n/a through <= 3.11.1.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Dimas Maulana | Patchstack Bug Bounty Program

References

https://patchstack.com/database/Wordpress/Plugin/custom-404-pro/vulnerability/wordpress-custom-404-pro-plugin-3-11-1-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve

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CVE-2025-62880

WordPress Custom 404 Pro plugin <= 3.12.0 - Cross Site Request Forgery (CSRF) vulnerability

Medium 4.3

Affected Vendor

Kunal

View all reports →

Affected Software

Custom 404 Pro

Vulnerable Versions:

Timeline

Official Publish: August 1st, 2024

Last Modified: April 28th, 2026

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Weaknesses (CWE)

CWE-79

MITRE ATT&CK TTPs

T1189 Drive-by Compromise

Initial Access

T1059.007 JavaScript

Execution

T1539 Steal Web Session Cookie

Collection

T1213 Data from Information Repositories