CVE-2022-42882
📋 TL;DR
This vulnerability allows authenticated attackers to inject malicious formulas into CSV files exported by the Simple CSV/XLS Exporter WordPress plugin. When victims open these CSV files in spreadsheet applications like Excel, the formulas can execute commands or access data. This affects WordPress sites using the plugin versions up to 1.5.8.
💻 Affected Systems
- Simple CSV/XLS Exporter WordPress Plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could execute arbitrary commands on victims' systems when they open malicious CSV files, potentially leading to full system compromise, data theft, or ransomware deployment.
Likely Case
Attackers trick users into opening CSV files that execute malicious formulas, potentially stealing credentials, accessing local files, or performing unauthorized actions.
If Mitigated
With proper user education about not opening untrusted CSV files and using text-only CSV viewers, impact is limited to potential data leakage from formula execution.
🎯 Exploit Status
Exploitation requires authenticated access to WordPress. CSV injection techniques are well-documented and easy to implement.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.5.9 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Simple CSV/XLS Exporter. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin, then install fresh version 1.5.9+ from WordPress repository.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate simple-csv-xls-exporter
Restrict User Access
allLimit plugin access to trusted administrators only
Use WordPress role management to restrict 'export' capabilities
🧯 If You Can't Patch
- Implement strict user education about not opening CSV files from untrusted sources in spreadsheet applications
- Configure spreadsheet applications to disable automatic formula execution when opening CSV files
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Simple CSV/XLS Exporter → Version. If version is 1.5.8 or earlier, system is vulnerable.Check Version:
wp plugin get simple-csv-xls-exporter --field=versionVerify Fix Applied:
Verify plugin version is 1.5.9 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Multiple CSV export requests from single user
- Unusual export patterns or times
Network Indicators:
- CSV file downloads containing formula characters (=, +, -, @) at beginning of cells
SIEM Query:
source="wordpress" AND (plugin="simple-csv-xls-exporter" AND version<="1.5.8")🔗 References
- https://patchstack.com/database/vulnerability/simple-csv-xls-exporter/wordpress-simple-csv-xls-exporter-plugin-1-5-8-authenticated-csv-injection-vulnerability?_s_id=cve
- https://patchstack.com/database/vulnerability/simple-csv-xls-exporter/wordpress-simple-csv-xls-exporter-plugin-1-5-8-authenticated-csv-injection-vulnerability?_s_id=cve
