CVE-2025-28899 in WP Event Ticketing Plugin
Summary
by MITRE • 03/26/2025
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in NotFound WP Event Ticketing allows Reflected XSS. This issue affects WP Event Ticketing: from n/a through 1.3.4.
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Analysis
by VulDB Data Team • 03/26/2025
This vulnerability represents a classic cross-site scripting flaw that specifically impacts the NotFound WP Event Ticketing plugin for WordPress platforms. The issue manifests as an improper neutralization of input data during web page generation processes, creating an avenue for malicious actors to inject and execute arbitrary scripts within the context of affected user browsers. The vulnerability exists in versions ranging from the initial release through version 1.3.4, indicating a persistent flaw that has not been adequately addressed in the plugin's codebase. The reflected nature of this XSS vulnerability means that malicious payloads are executed when users click on specially crafted links or interact with improperly sanitized input fields within the plugin's interface.
The technical implementation of this vulnerability stems from the plugin's failure to properly sanitize and validate user input before incorporating it into dynamically generated web pages. When users provide data through various input mechanisms within the WP Event Ticketing plugin, the application does not adequately escape or encode special characters that could be interpreted as HTML or JavaScript code. This allows attackers to craft malicious payloads that, when processed by the plugin, get executed in the browser context of legitimate users who visit affected pages. The flaw particularly affects how the plugin handles parameters passed through HTTP requests, making it susceptible to attacks that exploit user trust in the application.
The operational impact of this vulnerability extends beyond simple script execution, as reflected XSS attacks can enable sophisticated attack vectors including session hijacking, credential theft, and redirection to malicious sites. An attacker could potentially craft payloads that steal user cookies, redirect victims to phishing pages, or even modify the content displayed on event ticketing pages. The vulnerability is particularly concerning in event ticketing contexts where users may be entering sensitive information or where the plugin handles payment-related data. Attackers could exploit this flaw to manipulate event listings, inject malicious advertisements, or gain unauthorized access to user accounts through session manipulation techniques that leverage the XSS vulnerability.
Mitigation strategies for this vulnerability should encompass both immediate and long-term approaches to secure the affected plugin environment. Immediate remediation involves upgrading to the latest version of the WP Event Ticketing plugin where the XSS flaw has been addressed through proper input sanitization and output encoding mechanisms. Organizations should also implement comprehensive input validation at multiple layers including client-side and server-side processing to ensure that all user-supplied data is properly escaped before being rendered in web pages. Network-level protections such as content security policies and web application firewalls can provide additional defense-in-depth measures to detect and block malicious payloads attempting to exploit this vulnerability. The flaw aligns with CWE-79 which specifically addresses cross-site scripting vulnerabilities, and represents a clear violation of secure coding practices that should be addressed through proper input sanitization and output encoding as recommended in the OWASP Top Ten security guidelines.