CVE-2026-95530 in PixelYourSite Plugin
Summary
by MITRE • 09/23/2026
Subscriber Cross Site Scripting (XSS) in PixelYourSite – Your smart PIXEL (TAG) Manager <= 11.4.1 versions.
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Analysis
by VulDB Data Team • 09/23/2026
The vulnerability identified as a Subscriber Cross-Site Scripting issue within the PixelYourSite plugin for WordPress, affecting versions up to and including 11.4.1, represents a significant security risk that exploits insufficient input validation on user-facing roles with subscriber-level permissions. This flaw allows authenticated attackers who possess low-privilege accounts to inject malicious JavaScript code into web pages viewed by other users or administrators. The core technical deficiency lies in the application's failure to properly sanitize and validate data submitted through specific forms or parameters controlled by subscribers, such as settings related to pixel configuration or tag management interfaces that are accessible to this user tier. By bypassing expected access controls and input filtering mechanisms, an attacker can execute arbitrary scripts within the context of the victim's browser session, thereby leveraging the trust relationship between the browser and the vulnerable web application.
From a technical perspective, this vulnerability aligns with CWE-79, which categorizes improper neutralization of input during web page generation as Cross-site Scripting. The attack vector typically involves an attacker crafting a malicious payload containing JavaScript code or event handlers, such as onload or onerror attributes, and injecting it into fields that are rendered without adequate encoding in the HTML output. When another user with higher privileges, such as an administrator, views the affected page, their browser interprets the injected script as legitimate content originating from the trusted domain of PixelYourSite. This execution environment allows the malicious code to access sensitive cookies, session tokens, and local storage data associated with the victim's account on the WordPress site. The operational impact is severe because it facilitates unauthorized actions performed under the guise of the privileged user, potentially leading to complete compromise of the website backend if administrative functions are accessible via client-side scripts or API endpoints that do not enforce strict server-side validation independent of browser context.
The implications extend beyond simple defacement or session hijacking, as this vulnerability can be chained with other weaknesses to achieve more complex attack scenarios consistent with MITRE ATT&CK techniques such as T1059 Command and Scripting Interpreter for executing system commands via client-side scripts, or T1534 Internal Spearphishing if used to phish credentials from administrators. Furthermore, the ability to manipulate page content allows attackers to perform clickjacking attacks by overlaying deceptive elements over legitimate buttons, tricking users into performing unintended actions like changing site settings or deleting data. In e-commerce environments where PixelYourSite is commonly deployed for tracking sales and user behavior through Facebook Pixels and other analytics tags, this vulnerability could also be used to intercept sensitive transactional data being processed on the client side before it is sent to third-party servers, thereby violating privacy regulations such as GDPR or CCPA due to unauthorized data exfiltration.
Mitigation strategies must prioritize immediate remediation by upgrading PixelYourSite to a version greater than 11.4.1 where these input validation flaws have been addressed by the developers through rigorous sanitization of all user inputs and enforcement of strict output encoding principles. Until an update is applied, site administrators should consider restricting subscriber-level access to any configuration panels related to pixel settings or tag management if such functionality is not strictly required for those roles. Implementing a Web Application Firewall with rules capable of detecting and blocking common XSS payloads can provide an additional layer of defense by inspecting HTTP requests for suspicious patterns before they reach the application logic. Additionally, enabling Content Security Policy headers that restrict script execution to trusted sources only can significantly reduce the impact of successful injection attempts by preventing the browser from executing inline scripts or unauthorized external resources loaded via DOM manipulation techniques exploited in this vulnerability type.