CVE-2025-67534

7.1 HIGH

📋 TL;DR

A Cross-Site Request Forgery (CSRF) vulnerability in the Jacques Malgrange Rencontre WordPress plugin allows attackers to perform stored cross-site scripting (XSS) attacks. This affects all WordPress sites running Rencontre plugin versions up to and including 3.13.7. Attackers can trick authenticated administrators into executing malicious actions.

💻 Affected Systems

Products:
  • Jacques Malgrange Rencontre WordPress Plugin
Versions: All versions up to and including 3.13.7
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with Rencontre plugin enabled. Attack requires administrator interaction but no authentication from the attacker.

⚠️ 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 inject persistent malicious scripts that steal administrator credentials, deface websites, or redirect users to malicious sites when administrators visit vulnerable pages.

🟠

Likely Case

Attackers create fake forms or links that trick logged-in administrators into unknowingly submitting malicious content that gets stored as XSS payloads on the site.

🟢

If Mitigated

With proper CSRF tokens and input validation, the attack would fail as unauthorized requests would be rejected.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

CSRF to XSS chain requires social engineering but is technically simple. No public exploit code found but trivial 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-request-forgery-csrf-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 available. 5. Alternatively, download version 3.13.8+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Implement CSRF Protection

all

Add custom CSRF tokens to all Rencontre plugin forms

Requires custom PHP development - no single command

Disable Plugin

linux

Temporarily disable Rencontre plugin until patched

wp plugin deactivate rencontre

🧯 If You Can't Patch

  • Implement strict Content Security Policy (CSP) headers to limit XSS impact
  • Restrict admin panel access to specific IP addresses only

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Rencontre version. If version ≤ 3.13.7, vulnerable.

Check Version:

wp plugin get rencontre --field=version

Verify Fix Applied:

Verify Rencontre plugin version is 3.13.8 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Multiple failed CSRF token validations
  • Unexpected POST requests to Rencontre admin endpoints
  • Administrator accounts performing unusual form submissions

Network Indicators:

  • Cross-origin requests to Rencontre plugin endpoints
  • Suspicious referer headers in admin requests

SIEM Query:

source="wordpress.log" AND "rencontre" AND ("csrf" OR "invalid nonce" OR "wp_verify_nonce failed")

🔗 References

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