CVE-2025-22815
📋 TL;DR
This stored XSS vulnerability in the WordPress Button Block plugin allows attackers to inject malicious scripts into web pages that are then executed when other users view those pages. All WordPress sites using Button Block plugin versions up to 1.1.6 are affected. The vulnerability enables attackers to steal session cookies, redirect users, or perform actions on their behalf.
💻 Affected Systems
- WordPress Button Block plugin by bPlugins LLC
📦 What is this software?
Button Block by Bplugins
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator session cookies, take over WordPress sites, install backdoors, deface websites, or redirect visitors to malicious sites.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies or credentials, potentially compromising user accounts and sensitive data.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users, preventing exploitation.
🎯 Exploit Status
XSS vulnerabilities are commonly exploited and weaponization is likely given the public disclosure and WordPress plugin popularity.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.1.7 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Button Block' and click 'Update Now'. 4. Verify update to version 1.1.7 or higher.
🔧 Temporary Workarounds
Disable Button Block Plugin
allTemporarily disable the vulnerable plugin until patching is possible
wp plugin deactivate button-block
Implement WAF Rules
allConfigure web application firewall to block XSS payloads targeting Button Block endpoints
🧯 If You Can't Patch
- Restrict plugin access to trusted users only using WordPress role capabilities
- Implement Content Security Policy (CSP) headers to restrict script execution sources
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Button Block version. If version is 1.1.6 or lower, you are vulnerable.Check Version:
wp plugin get button-block --field=versionVerify Fix Applied:
After updating, verify Button Block plugin shows version 1.1.7 or higher in WordPress admin plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to Button Block endpoints
- JavaScript payloads in request parameters
- Multiple failed XSS attempts
Network Indicators:
- HTTP requests containing script tags or JavaScript in Button Block-related parameters
- Unusual outbound connections after visiting pages with buttons
SIEM Query:
source="wordpress.log" AND ("button-block" OR "button_block") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")