CVE-2025-32507

7.1 HIGH

📋 TL;DR

This reflected cross-site scripting (XSS) vulnerability in the Event Espresso WordPress plugin allows attackers to inject malicious scripts via crafted URLs. When users click malicious links, attackers can steal session cookies, redirect users, or perform actions on their behalf. This affects all WordPress sites using Event Espresso - Custom Email Template Shortcode version 1.0.0 or earlier.

💻 Affected Systems

Products:
  • Event Espresso - Custom Email Template Shortcode WordPress plugin
Versions: n/a through 1.0.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations using the vulnerable plugin version 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, install backdoors, deface websites, or redirect users to malicious sites.

🟠

Likely Case

Attackers steal user session cookies, perform unauthorized actions as authenticated users, or redirect users to phishing pages.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts would be neutralized before execution.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Reflected XSS vulnerabilities are commonly exploited and require minimal technical skill.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.0.1 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/email-shortcode/vulnerability/wordpress-event-espresso-plugin-1-0-0-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 'Event Espresso - Custom Email Template Shortcode'. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin.

🔧 Temporary Workarounds

WAF Rule Implementation

all

Deploy web application firewall rules to block XSS payloads in URL parameters

Content Security Policy

all

Implement strict CSP headers to prevent script execution from untrusted sources

🧯 If You Can't Patch

  • Deactivate and remove the vulnerable plugin immediately
  • Implement strict input validation and output encoding in custom code

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for 'Event Espresso - Custom Email Template Shortcode' version 1.0.0 or earlier

Check Version:

wp plugin list --name='Event Espresso - Custom Email Template Shortcode' --field=version

Verify Fix Applied:

Verify plugin version is 1.0.1 or later in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual URL parameters containing script tags or JavaScript code
  • Multiple failed XSS attempts in web server logs

Network Indicators:

  • HTTP requests with suspicious parameters containing <script> tags or JavaScript functions

SIEM Query:

source="web_server_logs" AND (url="*<script>*" OR url="*javascript:*" OR url="*onerror=*" OR url="*onload=*")

🔗 References

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