CVE-2025-31592
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the WordPress Send E-mail plugin allows attackers to inject malicious scripts into web pages. When exploited, these scripts execute in victims' browsers, potentially stealing session cookies or performing actions as authenticated users. All WordPress sites using Send E-mail plugin versions up to 1.3 are affected.
💻 Affected Systems
- WordPress Send E-mail 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, install backdoors, deface websites, or redirect visitors to malicious sites.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies, potentially compromising user accounts and performing unauthorized actions.
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 exploited and weaponization is likely given the public disclosure.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.4 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Send E-mail plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin, then install fresh version 1.4+ from WordPress repository.
🔧 Temporary Workarounds
Disable Send E-mail Plugin
allTemporarily disable the vulnerable plugin until patched version is available
wp plugin deactivate send-e-mail
Implement Content Security Policy
allAdd 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
- Disable the Send E-mail plugin immediately
- Implement web application firewall (WAF) rules to block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Send E-mail plugin version. If version is 1.3 or earlier, you are vulnerable.Check Version:
wp plugin get send-e-mail --field=versionVerify Fix Applied:
After updating, verify Send E-mail plugin shows version 1.4 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to Send E-mail plugin endpoints
- JavaScript payloads in form submissions
- Multiple failed XSS attempts in web server logs
Network Indicators:
- Malicious script tags in HTTP POST requests
- Suspicious JavaScript in form data
SIEM Query:
source="web_server" AND ("send-e-mail" OR "send_email") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")