CVE-2026-8167 in News Theme
Summary
by MITRE • 07/28/2026
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in THEWP Digital Solutions News Theme V8 allows Reflected XSS.
This issue affects News Theme V8: through 16.06.2026.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 07/28/2026
This vulnerability represents a classic cross-site scripting flaw that resides within the web application's input processing mechanisms, specifically during page generation phases. The weakness manifests as an improper neutralization of user-supplied data that flows into dynamically generated web content, creating an avenue for malicious actors to inject client-side scripts. The vulnerability affects THEWP Digital Solutions News Theme V8 version and all subsequent releases up until the specified date of 16.06.2026, indicating this represents a long-standing security deficiency that has persisted across multiple iterations of the theme.
The technical implementation of this flaw occurs when user input parameters are directly incorporated into HTML output without proper sanitization or encoding mechanisms. This allows attackers to craft malicious payloads that get executed within the context of other users' browsers when they view affected pages. The reflected nature of this vulnerability means that the malicious script is reflected off the web server, typically through URL parameters or form inputs, making it particularly dangerous as it requires no persistent storage on the server side. Attackers can exploit this by enticing victims to click on malicious links containing crafted payloads that will execute in the victim's browser when the page loads.
The operational impact of this vulnerability extends beyond simple data theft or defacement, as reflected XSS can be leveraged for session hijacking, credential theft, and more sophisticated attacks such as keylogging or redirecting users to malicious sites. The vulnerability falls under CWE-79 which specifically addresses cross-site scripting flaws in web applications, where inadequate input validation and output encoding creates opportunities for attackers to inject malicious scripts into web pages viewed by other users. This weakness directly enables techniques outlined in the ATT&CK framework under T1566 for initial access through spearphishing campaigns that deliver XSS payloads.
Mitigation strategies should focus on implementing robust input sanitization and output encoding practices throughout the application's data flow pipeline. The most effective approach involves applying context-specific encoding mechanisms such as HTML entity encoding, JavaScript escaping, or URL encoding when incorporating user data into web page content. Additionally, implementing Content Security Policy headers can provide an additional layer of protection by restricting script execution sources. Regular security assessments and input validation testing should be conducted to ensure that all user-supplied data is properly sanitized before being processed or displayed in web pages, particularly focusing on the specific parameters and endpoints identified as vulnerable within the News Theme V8 framework.