CVE-2023-3965

MEDIUM

National Show Centre NSC WordPress Theme <= 1.0 - Unauthenticated Reflected Cross-Site Scripting via Prototype Pollution

Title source: llm

Description

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.

References (2)

Core 2

Core References

Not Applicable

https://github.com/BlackFan/client-side-prototype-pollution

View Writeup ZIP pw:eip

Third Party Advisory

https://www.wordfence.com/threat-intel/vulnerabilities/id/5909513d-8877-40ff-bee9-d565141b7ed2?source=cve

Scores

CVSS v3 6.1

EPSS 0.0039

EPSS Percentile 30.2%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-1321 CWE-79

Status published

Products (2)

National Show Centre/NSC WordPress Theme < 1.0

saleswizard/nsc < 1.0

Published Oct 20, 2023

Tracked Since Feb 18, 2026