CVE-2025-7500: Ocean Social Sharing Plugin XSS Vulnerability

CVE-2025-7500 Overview

CVE-2025-7500 is a Stored Cross-Site Scripting (XSS) vulnerability in the Ocean Social Sharing plugin for WordPress. All versions up to and including 2.2.1 are affected. The flaw originates in the social icon title fields, which lack sufficient input sanitization and output escaping. Authenticated users with Contributor-level access or higher can inject arbitrary JavaScript into pages. The injected script executes in the browser of any visitor who accesses the affected page. The issue is tracked as CWE-79 and was published to the National Vulnerability Database (NVD) on August 2, 2025.

Critical Impact

Contributor-level accounts can plant persistent JavaScript payloads that execute in every visitor's browser, enabling session theft, forced administrative actions, and site defacement.

Affected Products

• Ocean Social Sharing plugin for WordPress — all versions through 2.2.1
• WordPress sites running the plugin alongside the Ocean WP theme ecosystem
• Any multi-author WordPress site granting Contributor role or higher to untrusted users

Discovery Timeline

• 2025-08-02 - CVE-2025-7500 published to NVD
• 2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-7500

Vulnerability Analysis

The Ocean Social Sharing plugin renders user-controlled values from the social icon title attribute into front-end HTML without proper escaping. The affected rendering logic resides in template/social-share.php at lines 84, 100, 176, and 262. Because the plugin trusts these stored values at output time, an authenticated user who can edit plugin-exposed settings or post-level social sharing options can store HTML or JavaScript that executes when the social share block is rendered.

Exploitation requires an authenticated session with Contributor privileges or higher. The attack is persistent, so the payload fires for every subsequent visitor, including administrators. Successful execution runs attacker-controlled script in the context of the victim's authenticated session. This exposes session cookies, enables forced requests to privileged WordPress REST endpoints, and allows manipulation of rendered page content. The vendor patched the issue in the referenced WordPress plugin changeset.

Root Cause

The root cause is missing sanitization on input and missing escaping on output for the social icon title fields. WordPress provides sanitize_text_field() for input and esc_attr() or esc_html() for output. The vulnerable template emits stored values directly into HTML attributes and tag content without applying these escaping functions, violating CWE-79.

Attack Vector

An attacker authenticates to the target WordPress site as a Contributor or higher. The attacker submits a social icon title that contains an HTML or JavaScript payload, for example an onerror handler or inline <script> fragment. When any user loads a page that renders the social share template, the stored payload executes in their browser. The attack is network-reachable and does not require user interaction beyond visiting the affected page.

For exact sink locations, see the vulnerable template references: social-share.php L84, L100, L176, and L262.

Detection Methods for CVE-2025-7500

Indicators of Compromise

• Unexpected <script>, onerror, onload, or onmouseover substrings in wp_options or post meta rows associated with the Ocean Social Sharing plugin
• Outbound browser requests from site visitors to unfamiliar domains sourced from pages containing the social share block
• New or modified administrator accounts created shortly after Contributor-level users edited social icon settings

Detection Strategies

• Query the WordPress database for Ocean Social Sharing option rows and inspect title fields for HTML tags, event handlers, or encoded script fragments
• Deploy a web application firewall rule that inspects responses for script content inside social share markup
• Review audit logs for Contributor or Author accounts modifying plugin-exposed settings outside normal editorial workflows

Monitoring Recommendations

• Enable WordPress activity logging to capture settings changes, post updates, and role assignments
• Monitor Content Security Policy (CSP) violation reports for inline script execution originating from front-end pages
• Alert on sudden spikes in failed admin AJAX requests or unusual REST API calls initiated from authenticated administrator sessions

How to Mitigate CVE-2025-7500

Immediate Actions Required

• Update the Ocean Social Sharing plugin to the version released in the vendor changeset 3331993
• Audit all stored social icon title values and remove any content containing HTML tags or JavaScript event handlers
• Rotate session cookies and reset passwords for administrator accounts that may have loaded compromised pages

Patch Information

The vendor addressed CVE-2025-7500 in the plugin update tracked by WordPress plugin repository changeset 3331993. Site operators should upgrade to the latest Ocean Social Sharing release available in the WordPress plugin directory. Additional analysis is published in the Wordfence CVE Vulnerability Analysis.

Workarounds

• Restrict Contributor and Author roles to trusted users until the plugin is patched
• Deactivate the Ocean Social Sharing plugin on sites that cannot immediately apply the vendor update
• Deploy a strict Content Security Policy that blocks inline scripts and unauthorized external script sources

# Content Security Policy header example for WordPress (Apache)
Header set Content-Security-Policy "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'self'"