CVE-2026-114429 in WPVR Plugin
Summary
by MITRE • 10/24/2026
The WPVR WordPress plugin before 9.0.3 does not properly sanitise and escape some of its tour hotspot content before storing it and outputting it on the front end, which could allow users with the Contributor role and above to perform Stored Cross-Site Scripting attacks that execute in the browser of any user viewing the affected tour.
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Analysis
by VulDB Data Team • 10/24/2026
The vulnerability identified in WPVR versions prior to 9.0.3 represents a critical security flaw within the WordPress plugin ecosystem, specifically targeting the handling of tour hotspot content. This issue stems from insufficient sanitization and escaping mechanisms when data is stored and subsequently rendered on the front end of websites utilizing this plugin. The core technical failure lies in the application's inability to properly filter malicious input or encode output for specific fields associated with virtual tours. When a user creates or edits a tour, they can inject arbitrary script code into hotspot descriptions or metadata. Because the system fails to validate these inputs against expected safe patterns and does not apply appropriate encoding before rendering them in HTML context, the browser interprets the injected content as executable JavaScript rather than plain text data.
This architectural weakness facilitates Stored Cross-Site Scripting attacks, a category of vulnerability classified under CWE-79 in the Common Weakness Enumeration standards. Unlike reflected XSS where malicious scripts are executed immediately via a crafted link, stored vulnerabilities persist within the application's database or file system. In this specific case, any user possessing at least Contributor-level privileges can exploit this flaw to embed persistent malicious payloads into tour hotspots. These payloads remain active on the server until manually removed by an administrator, meaning that every subsequent visitor who views the affected virtual tour will have their browser execute the attacker's code automatically upon page load or interaction with the specific hotspot element.
The operational impact of this vulnerability is severe due to its potential for widespread data compromise and session hijacking. Attackers can leverage the executed scripts to steal sensitive information such as administrative cookies, session tokens, or personal user data displayed on the page. Furthermore, the malicious code could redirect users to phishing sites designed to mimic legitimate WordPress login pages or other trusted services, thereby facilitating credential harvesting. In more sophisticated attack scenarios, the script could perform actions on behalf of the victim if they have higher privileges, effectively allowing privilege escalation within the WordPress environment. This aligns with MITRE ATT&CK technique T1059.007 (JavaScript), which describes how attackers use client-side scripts to execute malicious activities without requiring server-side exploitation or binary vulnerabilities.
Mitigation strategies must address both immediate remediation and long-term defensive posture improvements. The primary solution is to upgrade the WPVR plugin to version 9.0.3 or later, where these sanitization and escaping issues have been resolved by the developers. For organizations unable to update immediately due to compatibility constraints, temporary mitigation involves restricting user roles that can create or edit tours to only those with Administrator privileges, thereby reducing the attack surface for lower-privileged accounts like Contributors. Additionally, implementing a Web Application Firewall (WAF) configured with rulesets targeting common XSS patterns can provide an additional layer of defense by blocking malicious payloads before they reach the application logic. Regular security audits and code reviews focusing on input validation and output encoding practices are essential to prevent similar vulnerabilities in custom WordPress themes or plugins that handle user-generated content.