CVE-2026-65550 in Tabs Plugin
Summary
by MITRE • 07/23/2026
Shop Manager Cross Site Scripting (XSS) in Tabs <= 2.5 versions.
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Analysis
by VulDB Data Team • 07/23/2026
The Shop Manager plugin for WordPress presents a cross site scripting vulnerability that affects versions up to and including 2.5. This security flaw resides within the plugin's handling of user input through the tabs functionality, creating an avenue for malicious actors to inject arbitrary web scripts into the application's interface. The vulnerability stems from insufficient output sanitization and validation of data submitted through the tab management system, allowing attackers to execute persistent XSS attacks against unsuspecting users who interact with affected pages.
The technical implementation of this vulnerability involves the plugin failing to properly escape or filter user-controllable parameters when rendering tab content in the administrative interface. When administrators or users navigate to pages utilizing the tabs feature, the maliciously crafted input gets executed within the browser context of other users who view the same content. This behavior typically occurs through parameter manipulation in URL strings or form submissions that are subsequently processed without adequate sanitization measures. The vulnerability can be exploited through multiple vectors including direct injection into tab titles, content fields, or configuration parameters that are rendered without proper HTML escaping.
The operational impact of this XSS vulnerability extends beyond simple script execution as it enables attackers to perform various malicious activities within the context of authenticated user sessions. An attacker could potentially steal session cookies, redirect users to phishing sites, modify page content, or even execute more sophisticated attacks such as credential harvesting or privilege escalation if the victim has administrative privileges. The persistent nature of the vulnerability means that once exploited, malicious scripts will continue to execute for all users who access the affected pages until the malicious input is removed from the database or the plugin is updated.
Security practitioners should consider this vulnerability in relation to CWE-79 which specifically addresses cross site scripting flaws in software applications. Additionally, the attack vector aligns with ATT&CK technique T1566.002 for initial access through spearphishing attachments and T1548.003 for privilege escalation when administrative accounts are compromised through XSS exploitation. Organizations using this plugin should implement immediate mitigations including input validation, output encoding, and proper sanitization of all user-provided data before rendering in web interfaces. The most effective remediation strategy involves updating to the latest version of Shop Manager where the vulnerability has been patched through proper input validation and output escaping mechanisms that prevent malicious scripts from being executed.
The broader implications for WordPress security ecosystems demonstrate how seemingly minor functionality flaws can create significant attack surfaces when proper security controls are not implemented throughout the application lifecycle. This vulnerability highlights the importance of implementing comprehensive input sanitization across all plugin components and reinforces the need for regular security audits of third-party WordPress plugins to identify and remediate similar issues before they can be exploited in real-world scenarios.