CVE-2025-30587: LH OGP Meta CSRF Vulnerability

CVE-2025-30587 Overview

CVE-2025-30587 is a Cross-Site Request Forgery (CSRF) vulnerability in the WordPress plugin LH OGP Meta (lh-ogp-meta-tags) developed by shawfactor. This vulnerability enables attackers to chain CSRF with Stored Cross-Site Scripting (XSS), allowing malicious actors to inject persistent scripts into the affected WordPress site by tricking authenticated administrators into executing crafted requests.

Critical Impact

Attackers can exploit this CSRF vulnerability to inject stored XSS payloads, potentially compromising administrator sessions, defacing websites, stealing sensitive data, or distributing malware to site visitors.

Affected Products

• LH OGP Meta WordPress Plugin versions from n/a through 1.73
• WordPress installations using vulnerable versions of lh-ogp-meta-tags
• Websites relying on LH OGP Meta for Open Graph Protocol meta tag management

Discovery Timeline

• 2025-03-24 - CVE CVE-2025-30587 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2025-30587

Vulnerability Analysis

This vulnerability represents a dangerous combination of two web application security flaws: Cross-Site Request Forgery (CSRF) and Stored Cross-Site Scripting (XSS). The LH OGP Meta plugin, designed to manage Open Graph Protocol meta tags for better social media sharing, fails to implement proper anti-CSRF token validation on state-changing operations. This allows attackers to craft malicious requests that, when executed by an authenticated administrator, inject persistent JavaScript code into the plugin's configuration or output.

The chained nature of this vulnerability significantly amplifies its impact. While CSRF alone would allow unauthorized configuration changes, the ability to store XSS payloads means the malicious content persists and executes whenever users or administrators view the affected pages.

Root Cause

The root cause of CVE-2025-30587 lies in the absence of proper nonce verification and input sanitization within the LH OGP Meta plugin. WordPress provides built-in CSRF protection through nonces (number used once), but the vulnerable plugin versions fail to implement these security controls on form submissions and AJAX endpoints. Additionally, user-supplied input is stored without adequate sanitization or escaping, enabling the injection of malicious script content that executes in the browser context of subsequent visitors.

Attack Vector

The attack requires social engineering to lure an authenticated WordPress administrator to visit a malicious page or click a crafted link. The attacker's page contains a hidden form or JavaScript that automatically submits a request to the vulnerable plugin endpoint. Since the victim's browser includes their valid session cookies, the malicious request is processed as if it were legitimate.

The attack chain proceeds as follows: An attacker crafts a malicious HTML page containing a form that targets the vulnerable LH OGP Meta plugin endpoint. The form includes XSS payload data in the relevant input fields. When an authenticated administrator visits the attacker's page, the form auto-submits to the WordPress site. The plugin processes the request without verifying a CSRF token and stores the malicious payload. Subsequently, when any user views pages utilizing the plugin's meta tag functionality, the stored XSS payload executes in their browser.

Detection Methods for CVE-2025-30587

Indicators of Compromise

• Unexpected or unauthorized changes to Open Graph meta tag configurations in the LH OGP Meta plugin settings
• Suspicious JavaScript content appearing in plugin database entries or page source code
• Browser console errors or unexpected script execution when viewing pages with OGP meta tags
• Administrator reports of being redirected to unexpected pages after visiting external links

Detection Strategies

• Implement WordPress security plugins that monitor for unauthorized plugin configuration changes
• Review database tables associated with the LH OGP Meta plugin for injected script content
• Deploy Content Security Policy (CSP) headers to detect and block unauthorized inline script execution
• Monitor server access logs for suspicious POST requests to plugin admin endpoints from unusual referrers

Monitoring Recommendations

• Enable WordPress audit logging to track all plugin configuration changes with timestamp and user attribution
• Configure web application firewall (WAF) rules to detect and alert on XSS payload patterns in form submissions
• Implement browser-based XSS detection through CSP violation reporting endpoints

How to Mitigate CVE-2025-30587

Immediate Actions Required

• Update the LH OGP Meta plugin to a patched version as soon as one becomes available from the developer
• Audit current plugin settings and database entries for any signs of injected malicious content
• Consider temporarily deactivating the LH OGP Meta plugin until a security patch is released
• Educate administrators about the risks of clicking links from untrusted sources while logged into WordPress

Patch Information

No official patch information is currently available. Administrators should monitor the Patchstack Vulnerability Advisory and the WordPress plugin repository for updates from the developer. Until a patch is released, implementing the workarounds below is strongly recommended.

Workarounds

• Implement a Web Application Firewall (WAF) with CSRF and XSS protection rules
• Restrict administrative access to trusted IP addresses only
• Use browser extensions that block automatic form submissions on external pages
• Configure Content Security Policy headers to prevent inline script execution

# Apache .htaccess configuration to add CSP headers
# Add to WordPress root .htaccess file

<IfModule mod_headers.c>
    # Content Security Policy to mitigate XSS impact
    Header set Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline' https://trusted-cdn.example.com; style-src 'self' 'unsafe-inline';"
    
    # Additional security headers
    Header set X-Content-Type-Options "nosniff"
    Header set X-Frame-Options "SAMEORIGIN"
    Header set X-XSS-Protection "1; mode=block"
</IfModule>