CVE-2026-94684 in Ocean Extra Plugin
Summary
by MITRE • 09/23/2026
Contributor Cross Site Scripting (XSS) in Ocean Extra <= 2.6.1 versions.
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Analysis
by VulDB Data Team • 09/23/2026
The vulnerability identified as Contributor Cross-Site Scripting within the Ocean Extra plugin, specifically affecting versions up to and including 2.6.1, represents a significant security flaw targeting users with contributor-level privileges on WordPress installations. This type of attack vector is particularly concerning because it allows an attacker who has already gained access to a lower-privileged account to escalate their impact without needing administrator rights. The Ocean Extra plugin serves as a companion tool for the OceanWP theme, providing additional customization options and features. When this software contains unvalidated input fields or improperly sanitized output mechanisms, it creates an opportunity for malicious actors to inject client-side scripts into web pages viewed by other users.
The technical root cause of this vulnerability lies in insufficient sanitization and validation of user-supplied data before it is rendered in the browser context. In many WordPress plugins, contributor-level inputs are often processed with less scrutiny than administrator inputs under the assumption that contributors pose a lower risk. However, if the plugin fails to properly escape special characters such as angle brackets, quotes, or ampersands when displaying content back to the user, it enables Stored Cross-Site Scripting attacks. An attacker can craft specific payloads containing JavaScript code and submit them through any input field managed by Ocean Extra that is susceptible to this flaw. Once stored in the database, these scripts are executed automatically whenever an administrator or another privileged user views the affected page or content item.
From a classification perspective, this vulnerability aligns with CWE-79, which defines Improper Neutralization of Input During Web Page Generation commonly known as Cross-site Scripting. The specific nature of this flaw suggests it is likely a Stored XSS variant rather than Reflected XSS, given that the payload persists in the application's data store and triggers upon subsequent page loads by other users. This persistence mechanism increases the severity because the attack does not require social engineering tricks like sending malicious links to victims; instead, the vulnerability lies dormant until triggered by legitimate site activity.
The operational impact of this vulnerability is substantial for organizations relying on WordPress for content management or collaborative platforms. An attacker exploiting this flaw can execute arbitrary JavaScript in the context of the victim's browser session. This capability allows for Session Hijacking, where the attacker steals authentication cookies and takes over active administrator sessions. It also facilitates Phishing attacks by injecting fake login forms into legitimate pages to harvest credentials. Furthermore, attackers can deface websites, redirect users to malicious domains, or use the compromised site as a vector for distributing malware to visitors. Since contributors are often trusted content creators who may interact with sensitive areas of the dashboard, their compromise serves as a reliable foothold for deeper network intrusion.
Mitigation strategies must address both immediate remediation and long-term security hygiene. The primary solution is to update the Ocean Extra plugin to version 2.6.2 or later, where the developers have presumably implemented proper input sanitization using WordPress functions like wp_kses_post or esc_html depending on the context of output. For sites unable to upgrade immediately due to compatibility constraints, temporary mitigations include restricting contributor privileges to only necessary capabilities and enabling a Web Application Firewall that can detect and block common XSS payload patterns in HTTP requests. Additionally, implementing Content Security Policy headers can help mitigate the impact by restricting the sources from which scripts are allowed to execute, thereby preventing injected payloads from running even if they are successfully stored.
Security best practices dictate that developers should never trust user input regardless of the role associated with it. All data entering and leaving the application must be validated against expected formats and sanitized based on its intended context. For WordPress plugin authors, this means consistently using escaping functions for output and sanitization functions for input. Regular security audits and code reviews focusing on privilege escalation paths are essential to identify such flaws before they reach production environments. Organizations should also monitor their plugins for updates regularly, as vulnerability disclosures often lead to rapid patch releases that close these critical gaps in defense-in-depth strategies.