CVE-2025-59553
📋 TL;DR
This vulnerability allows attackers to inject malicious scripts into web pages generated by the Custom iFrame for Elementor WordPress plugin. When users view pages containing the malicious iframe, their browsers execute the attacker's code, potentially stealing session cookies or performing actions on their behalf. WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- Custom iFrame for Elementor 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, or redirect visitors to malicious sites.
Likely Case
Attackers inject malicious scripts to steal user session cookies or credentials, potentially compromising user accounts.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers.
🎯 Exploit Status
Requires attacker to inject malicious payload into iframe content that gets rendered without proper sanitization.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 1.0.13
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Custom iFrame for Elementor'. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable Plugin
WordPressTemporarily disable the vulnerable plugin until patched.
wp plugin deactivate custom-iframe
Content Security Policy
allImplement CSP headers to restrict script execution sources.
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to wp-config.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");
🧯 If You Can't Patch
- Remove or disable the Custom iFrame for Elementor plugin entirely
- Implement web application firewall (WAF) rules to block XSS payloads in iframe parameters
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for 'Custom iFrame for Elementor' version 1.0.13 or earlier.Check Version:
wp plugin get custom-iframe --field=versionVerify Fix Applied:
Verify plugin version is higher than 1.0.13 in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual iframe parameters in web server logs
- Multiple requests with script tags in query parameters
Network Indicators:
- HTTP requests containing malicious script payloads in iframe-related parameters
SIEM Query:
source="web_server" AND ("iframe" AND ("script" OR "javascript:" OR "onload=" OR "onerror="))