CVE-2025-32504

7.1 HIGH

📋 TL;DR

This vulnerability allows attackers to inject malicious scripts into web pages generated by the Silvasoft boekhouden WordPress plugin. When users visit a specially crafted URL, the script executes in their browser, potentially stealing session cookies or performing actions on their behalf. All WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • Silvasoft boekhouden WordPress plugin
Versions: All versions up to and including 3.0.5
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with the vulnerable plugin activated.

⚠️ 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, deface websites, or redirect users to malicious sites.

🟠

Likely Case

Attackers steal user session cookies or credentials through phishing links, leading to unauthorized access to accounting data.

🟢

If Mitigated

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

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Reflected XSS typically requires user interaction (clicking a malicious link).

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version 3.0.6 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/silvasoft-boekhouden/vulnerability/wordpress-silvasoft-boekhouden-plugin-3-0-5-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 'Silvasoft boekhouden' and click 'Update Now'. 4. Verify update to version 3.0.6 or higher.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the vulnerable plugin until patched.

wp plugin deactivate silvasoft-boekhouden

Web Application Firewall (WAF)

all

Configure WAF rules to block XSS payloads targeting the vulnerable endpoint.

🧯 If You Can't Patch

  • Implement Content Security Policy (CSP) headers to restrict script execution sources.
  • Use browser security features like HttpOnly and Secure flags for cookies.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Silvasoft boekhouden version. If version is 3.0.5 or lower, it's vulnerable.

Check Version:

wp plugin get silvasoft-boekhouden --field=version

Verify Fix Applied:

Verify plugin version is 3.0.6 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

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

Network Indicators:

  • HTTP requests with suspicious parameters containing <script>, javascript:, or encoded payloads.

SIEM Query:

source="web_server_logs" AND (uri_path="*silvasoft*" OR uri_path="*boekhouden*") AND (http_method="GET" OR http_method="POST") AND (query="*<script>*" OR query="*javascript:*" OR query="*%3Cscript%3E*")

🔗 References

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