CVE-2023-45760
📋 TL;DR
This CVE describes a Missing Authorization vulnerability in the wpDiscuz WordPress plugin that allows attackers to exploit incorrectly configured access control security levels. It affects all wpDiscuz installations up to version 7.6.3, potentially allowing unauthorized users to perform actions they shouldn't have permission for.
💻 Affected Systems
- wpDiscuz WordPress Plugin
📦 What is this software?
Wpdiscuz by Gvectors
⚠️ Risk & Real-World Impact
Worst Case
Attackers could modify or delete comments, manipulate comment settings, or potentially access administrative comment functions without proper authorization.
Likely Case
Unauthorized users could edit or delete comments they don't own, potentially leading to content manipulation or comment spam.
If Mitigated
With proper access controls and authentication checks, only authorized users can perform comment-related actions.
🎯 Exploit Status
Exploitation requires some level of user access but bypasses authorization checks for specific actions.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.6.4 and later
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/wpdiscuz/vulnerability/wordpress-wpdiscuz-plugin-7-6-3-broken-access-control-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Go to Plugins → Installed Plugins
3. Find wpDiscuz and click 'Update Now'
4. Verify update to version 7.6.4 or later
🔧 Temporary Workarounds
Disable wpDiscuz Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate wpdiscuz
Restrict Comment Access
allConfigure WordPress to require user registration for commenting
🧯 If You Can't Patch
- Implement web application firewall rules to detect and block unauthorized comment modification attempts
- Enable detailed logging of all comment-related actions and monitor for unauthorized access patterns
🔍 How to Verify
Check if Vulnerable:
Check wpDiscuz version in WordPress admin panel under Plugins → Installed PluginsCheck Version:
wp plugin list --name=wpdiscuz --field=versionVerify Fix Applied:
Verify wpDiscuz version is 7.6.4 or higher in WordPress admin📡 Detection & Monitoring
Log Indicators:
- Unauthorized comment modifications
- Comment edits/deletes from non-owners
- Multiple comment actions from single user in short time
Network Indicators:
- Unusual POST requests to comment-related endpoints
- Comment modification requests without proper authentication headers
SIEM Query:
source="wordpress.log" AND ("comment_edit" OR "comment_delete") AND NOT user_role="administrator"