CVE-2025-67558

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Rencontre WordPress plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. All WordPress sites running Rencontre plugin versions up to and including 3.13.7 are affected. The vulnerability enables attackers to steal session cookies, redirect users, or perform actions on their behalf.

💻 Affected Systems

Products:
  • WordPress Rencontre plugin
Versions: All versions up to and including 3.13.7
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: The vulnerability affects the Rencontre plugin specifically; WordPress core is not vulnerable. All sites with the plugin enabled 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, gain administrative access to the WordPress site, install backdoors, deface the site, or pivot to attack other systems.

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies, redirect users to phishing sites, or perform actions as authenticated users.

🟢

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: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Stored XSS vulnerabilities are commonly exploited. While no public PoC is confirmed, the vulnerability type is well-understood and easy to weaponize.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version 3.13.8 or later

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/rencontre/vulnerability/wordpress-rencontre-plugin-3-13-7-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 Rencontre plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 3.13.8+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable Rencontre plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate rencontre

Implement WAF rules

all

Configure web application firewall to block XSS payloads targeting Rencontre endpoints

🧯 If You Can't Patch

  • Implement Content Security Policy (CSP) headers to restrict script execution
  • Enable WordPress security plugins with XSS protection features

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for Rencontre version. If version is 3.13.7 or lower, you are vulnerable.

Check Version:

wp plugin get rencontre --field=version

Verify Fix Applied:

After updating, verify Rencontre plugin version shows 3.13.8 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to Rencontre plugin endpoints containing script tags or JavaScript
  • Multiple failed XSS attempts in web server logs

Network Indicators:

  • HTTP requests containing malicious script payloads to Rencontre-specific URLs
  • Outbound connections to suspicious domains from your WordPress site

SIEM Query:

source="web_server_logs" AND (uri="*rencontre*" AND (body="*<script>*" OR body="*javascript:*" OR body="*onload=*"))

🔗 References

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