CVE-2023-3965

MEDIUM 6.1

nsc <= 1.0 - Prototype Pollution to Reflected Cross-Site Scripting

CVSS Score

6.1

EPSS Score

0.0%

EPSS Percentile

0th

The nsc theme for WordPress is vulnerable to Reflected Cross-Site Scripting via prototype pollution in versions up to, and including, 1.0 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

CWE	CWE-79
Vendor	national show centre
Product	nsc wordpress theme
Published	Oct 20, 2023
Last Updated	Apr 8, 2026

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CVSS v3 Breakdown

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

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

National Show Centre / NSC WordPress Theme

0 ≤ 1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/5909513d-8877-40ff-bee9-d565141b7ed2?source=cve github.com: https://github.com/BlackFan/client-side-prototype-pollution

Credits

longxi