CVE-2025-31556
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the IMPress for IDX Broker WordPress plugin allows attackers to inject malicious scripts into web pages. When exploited, these scripts execute in victims' browsers, potentially stealing session cookies, redirecting users, or performing actions on their behalf. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- IDX Broker IMPress for IDX Broker WordPress Plugin
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- 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, install backdoors, or redirect visitors to malicious sites.
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.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly weaponized. Exploitation requires the attacker to have some level of access to inject malicious payloads.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 3.2.3
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'IMPress for IDX Broker'. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate impress-for-idx-broker
Implement WAF Rules
allAdd web application firewall rules to block XSS payloads
# Configure WAF to filter <script> tags and JavaScript events
🧯 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 'IMPress for IDX Broker' version 3.2.3 or earlierCheck Version:
wp plugin get impress-for-idx-broker --field=versionVerify Fix Applied:
Verify plugin version is higher than 3.2.3 in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests containing script tags or JavaScript code to plugin endpoints
- Multiple failed login attempts followed by plugin modification
Network Indicators:
- HTTP requests containing malicious script payloads in parameters
- Unexpected outbound connections from WordPress site
SIEM Query:
source="wordpress.log" AND ("impress" OR "idx-broker") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")