CVE-2025-48116

5.3 MEDIUM

📋 TL;DR

This CVE describes a missing authorization vulnerability in the EventON WordPress plugin that allows attackers to access functionality not properly constrained by access controls. Attackers can perform actions they shouldn't be authorized for, potentially modifying events or accessing restricted data. This affects all WordPress sites running EventON versions up to 2.4.4.

💻 Affected Systems

Products:
  • EventON WordPress Plugin
  • EventON Lite WordPress Plugin
Versions: All versions up to and including 2.4.4
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects both free (Lite) and premium versions of EventON. Requires WordPress installation with EventON plugin active.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Unauthorized users could modify or delete events, access sensitive event data, or potentially escalate privileges within the WordPress environment.

🟠

Likely Case

Low-privileged users or attackers could modify event details, access registration information, or perform administrative functions without proper authorization.

🟢

If Mitigated

With proper access controls and authentication checks, only authorized users can perform administrative functions on events.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires some level of access to the WordPress site, but the vulnerability allows bypassing authorization checks for specific functions.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.4.5 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/eventon-lite/vulnerability/wordpress-eventon-2-4-4-broken-access-control-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Navigate to Plugins > Installed Plugins
3. Find EventON plugin
4. Click 'Update Now' if available
5. If not available, download latest version from WordPress.org
6. Deactivate old version
7. Upload and activate new version
8. Verify version is 2.4.5 or higher

🔧 Temporary Workarounds

Temporary Plugin Deactivation

all

Deactivate EventON plugin until patched to prevent exploitation

wp plugin deactivate eventon-lite
wp plugin deactivate eventon

Access Restriction via .htaccess

linux

Restrict access to EventON admin functions via web server configuration

# Add to .htaccess in WordPress root:
<FilesMatch "eventon.*\.php">
Require valid-user
</FilesMatch>

🧯 If You Can't Patch

  • Implement strict network access controls to limit who can access the WordPress admin interface
  • Enable WordPress security plugins that monitor for unauthorized access attempts and block suspicious activity

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > EventON > View version details. If version is 2.4.4 or lower, you are vulnerable.

Check Version:

wp plugin get eventon --field=version

Verify Fix Applied:

After updating, verify EventON version shows 2.4.5 or higher in WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized POST requests to EventON admin endpoints
  • Multiple failed authorization attempts followed by successful EventON function calls
  • User role changes or privilege escalation attempts

Network Indicators:

  • Unusual traffic patterns to /wp-content/plugins/eventon/ endpoints
  • POST requests to EventON admin functions from unauthorized IPs

SIEM Query:

source="wordpress.log" AND ("eventon" OR "ajax_eventon") AND ("admin" OR "save" OR "delete") AND NOT user_role="administrator"

🔗 References

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