CVE-2025-23456

7.1 HIGH

📋 TL;DR

A Cross-Site Request Forgery (CSRF) vulnerability in the EmailShroud WordPress plugin allows attackers to trick authenticated administrators into performing unintended actions, which can lead to Reflected Cross-Site Scripting (XSS). This affects all WordPress sites using EmailShroud versions up to 2.2.1. Attackers can exploit this to inject malicious scripts that execute in administrators' browsers.

💻 Affected Systems

Products:
  • EmailShroud WordPress Plugin
Versions: n/a through 2.2.1
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires the plugin to be installed and activated on WordPress sites. Vulnerable in default configurations.

⚠️ 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 gain administrative access to WordPress sites, install backdoors, steal sensitive data, deface websites, or pivot to internal networks.

🟠

Likely Case

Attackers inject malicious scripts that steal administrator session cookies, leading to unauthorized administrative actions or data theft.

🟢

If Mitigated

With proper CSRF protections and content security policies, exploitation attempts would fail or have limited impact.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

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

Exploitation requires tricking authenticated administrators into clicking malicious links. No public exploit code is known.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 2.2.1

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/emailshroud/vulnerability/wordpress-emailshroud-plugin-2-2-1-csrf-to-reflected-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 EmailShroud and click 'Update Now' if available. 4. If no update is available, deactivate and delete the plugin, then install the latest version from WordPress repository.

🔧 Temporary Workarounds

Implement CSRF Tokens Manually

all

Add CSRF protection tokens to all EmailShroud forms and validate them server-side.

Apply Content Security Policy (CSP)

all

Implement a strict CSP header to prevent execution of injected scripts.

🧯 If You Can't Patch

  • Disable or remove the EmailShroud plugin immediately.
  • Restrict administrative access to trusted networks only.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for EmailShroud version. If version is 2.2.1 or earlier, the site is vulnerable.

Check Version:

wp plugin list --name=emailshroud --field=version

Verify Fix Applied:

After updating, verify the plugin version is higher than 2.2.1 in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to EmailShroud endpoints from unexpected referrers
  • Administrative actions (plugin installs, settings changes) from unusual IPs

Network Indicators:

  • HTTP requests with suspicious parameters in EmailShroud URLs
  • Traffic patterns where administrators visit external sites then immediately perform actions

SIEM Query:

source="wordpress.log" AND (uri_path="/wp-admin/admin-ajax.php" OR uri_path CONTAINS "emailshroud") AND (http_method="POST" AND referrer NOT CONTAINS own_domain)

🔗 References

📤 Share & Export