CVE-2025-49893 HIGH

CVE-2025-49893: WordPress Nuss Theme <= 1.3.3 - Cross Site Scripting (XSS) Vulnerability

Vendor Uxper

Product Nuss

Weakness CWE-79 · XSS

Published August 20, 2025

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

7.1/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction Required

Confidentiality Low

Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in uxper Nuss nuss allows Reflected XSS.This issue affects Nuss: from n/a through <= 1.3.3.

Explanation of Vulnerability in Simple Terms

02Summary

Nuss versions up to 1.3.3 contain a cross-site scripting (XSS) vulnerability that allows attackers to inject malicious scripts into web pages. The vulnerability requires user interaction—typically clicking a malicious link—and can affect other users viewing the compromised content. An attacker needs no authentication to exploit this flaw.

What an attacker can do

03Attacker Capabilities

Inject malicious scripts that execute in other users' browsers when they visit affected pages.

Potential impact on your site

04Site Impact

Users' sessions, credentials, or personal data could be stolen if they interact with injected content.

Conditions required to exploit

05Prerequisites

Victim must click a malicious link or visit a page containing the attacker's payload.

Key dates

06Disclosure timeline

August 20, 2025 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2025-49893 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html AskarLabs — CWE-79 write-up Cross-Site Scripting

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