CVE-2025-26559
📋 TL;DR
This reflected cross-site scripting (XSS) vulnerability in the WordPress Secure Invites plugin allows attackers to inject malicious scripts into web pages. When exploited, it can enable session hijacking, credential theft, or redirection to malicious sites. WordPress sites using vulnerable versions of the Secure Invites plugin are affected.
💻 Affected Systems
- WordPress Secure Invites 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 credentials, take over WordPress sites, install backdoors, or redirect users to phishing/malware sites.
Likely Case
Attackers steal user session cookies to impersonate legitimate users, potentially gaining unauthorized access to sensitive areas of the site.
If Mitigated
With proper input validation and output encoding, the malicious scripts would be neutralized before reaching users' browsers.
🎯 Exploit Status
Reflected XSS vulnerabilities are commonly exploited and require minimal technical skill. Attackers can craft malicious URLs containing the payload.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.1 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Secure Invites' plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and remove plugin, then install latest version from WordPress repository.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily disable the Secure Invites plugin until patched
wp plugin deactivate secure-invites
Implement WAF rules
allAdd web application firewall rules to block XSS payloads
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution
- Deploy a web application firewall (WAF) with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for Secure Invites version. If version is 1.3 or earlier, you are vulnerable.Check Version:
wp plugin get secure-invites --field=versionVerify Fix Applied:
After updating, verify plugin version shows 1.3.1 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual GET/POST requests containing script tags or JavaScript code in parameters
- Multiple failed requests to plugin endpoints with suspicious payloads
Network Indicators:
- HTTP requests with encoded script payloads in query parameters
- Traffic patterns showing users being redirected to unexpected URLs
SIEM Query:
source="wordpress.log" AND ("secure-invites" OR "wp-content/plugins/secure-invites") AND ("<script" OR "javascript:" OR "onerror=" OR "onload=")