CVE-2025-31433

6.5 MEDIUM

📋 TL;DR

A stored cross-site scripting (XSS) vulnerability in the Magic Embeds WordPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the malicious content, the scripts execute in their browsers. This affects all WordPress sites using Magic Embeds versions up to 3.1.2.

💻 Affected Systems

Products:
  • Magic Embeds WordPress plugin
Versions: n/a through 3.1.2
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations using vulnerable Magic Embeds versions are affected regardless of configuration.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator session cookies, take over WordPress sites, redirect users to malicious sites, or deploy malware to visitors' browsers.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies or credentials, potentially compromising user accounts and site integrity.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

XSS vulnerabilities typically have low exploitation complexity once the injection point is identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.1.3 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/wp-embed-facebook/vulnerability/wordpress-magic-embeds-3-1-2-cross-site-scripting-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Magic Embeds plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin, then install latest version from WordPress repository.

🔧 Temporary Workarounds

Disable Magic Embeds plugin

all

Temporarily disable the vulnerable plugin until patched version is available

wp plugin deactivate magic-embeds

Implement Content Security Policy

all

Add CSP headers to restrict script execution sources

Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block XSS payloads
  • Disable user input fields that accept HTML/JavaScript in Magic Embeds functionality

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for Magic Embeds version. If version is 3.1.2 or earlier, you are vulnerable.

Check Version:

wp plugin get magic-embeds --field=version

Verify Fix Applied:

After updating, verify Magic Embeds version is 3.1.3 or later in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to Magic Embeds endpoints with script tags
  • JavaScript payloads in WordPress content or comments

Network Indicators:

  • Outbound connections to suspicious domains from your WordPress site
  • Unexpected iframe or script loads in page responses

SIEM Query:

source="wordpress" AND ("magic-embeds" OR "wp-embed-facebook") AND ("<script>" OR "javascript:" OR "onload=" OR "onerror=")

🔗 References

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