CVE-2025-2167
📋 TL;DR
The Event post plugin for WordPress has a stored cross-site scripting (XSS) vulnerability that allows authenticated attackers with contributor-level access or higher to inject malicious scripts into website pages. These scripts execute whenever users visit the compromised pages, potentially stealing session cookies or redirecting users to malicious sites. All WordPress sites using Event post plugin versions up to 5.9.9 are affected.
💻 Affected Systems
- WordPress Event post 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 the WordPress site, install backdoors, deface the website, or redirect users to phishing/malware sites.
Likely Case
Attackers with contributor access inject malicious scripts that steal user session cookies or redirect visitors to malicious sites, potentially compromising user accounts and data.
If Mitigated
With proper input validation and output escaping, the vulnerability is prevented, and only legitimate content displays in the events list.
🎯 Exploit Status
Exploitation requires authenticated access (contributor or higher) and knowledge of WordPress shortcode usage. The vulnerability is in a popular plugin making it an attractive target.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 6.0.0 or later
Vendor Advisory: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3257882%40event-post&new=3257882%40event-post&sfp_email=&sfph_mail=
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Event post' plugin. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 6.0.0+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Remove Contributor Access
allTemporarily remove contributor-level access from untrusted users until patch is applied.
Navigate to Users → All Users in WordPress admin, edit user roles to remove contributor access
Disable Plugin
allTemporarily disable the Event post plugin if events functionality is not critical.
Navigate to Plugins → Installed Plugins in WordPress admin, deactivate Event post plugin
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads in shortcode attributes
- Regularly audit user accounts and remove unnecessary contributor-level access
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins, find Event post plugin and verify version is 5.9.9 or lower.Check Version:
wp plugin list --name=event-post --field=version (if WP-CLI installed) or check WordPress admin plugins pageVerify Fix Applied:
After updating, verify Event post plugin version shows 6.0.0 or higher in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to wp-admin with event-post shortcode parameters containing script tags or JavaScript
- Multiple failed login attempts followed by successful contributor-level login
Network Indicators:
- Outbound connections to suspicious domains from your WordPress server following page visits
SIEM Query:
source="wordpress.log" AND ("event-post" OR "events_list") AND ("script" OR "javascript:" OR "onerror=" OR "onload=")