What is the CVSS score of CVE-2024-39646?

CVE-2024-39646 has a CVSS 3.1 base score of 7.1 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L. EPSS exploitation probability: 6.7%.

Is there a public PoC exploit available for CVE-2024-39646?

Yes, a public proof-of-concept exploit is available for CVE-2024-39646. Prioritise patching immediately. EPSS: 6.7%.

Kunal Custom CVE-2024-39646

HIGH

Cross-site Scripting (XSS) (CWE-79)

2024-08-01 audit@patchstack.com

XSS

7.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.1 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

Low

Lifecycle Timeline

Severity Changed

Apr 23, 2026 - 15:22 NVD

MEDIUM HIGH

CVSS changed

Apr 23, 2026 - 15:22 NVD

6.1 (MEDIUM) 7.1 (HIGH)

CVE Published

Aug 01, 2024 - 23:15 nvd

MEDIUM 6.1

CVE Published

Aug 01, 2024 - 23:15 cve.org

HIGH 7.1

DescriptionCVE.org

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.

AnalysisAI

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Kunal Custom 404 Pro custom-404-pro.11.1. Rated high severity (CVSS 7.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Kunal Custom 404 Pro custom-404-pro.11.1. Affected products include: Kunalnagar Custom 404 Pro.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.