CVE-2023-45005
📋 TL;DR
This vulnerability allows unauthenticated attackers to inject malicious scripts via specially crafted URLs in the Seriously Simple Stats WordPress plugin. When victims click these links, the scripts execute in their browser context, potentially stealing session cookies or redirecting to malicious sites. All WordPress sites using Seriously Simple Stats plugin version 1.5.1 or earlier are affected.
💻 Affected Systems
- WordPress Seriously Simple Stats plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator session cookies, take over WordPress sites, install backdoors, or redirect visitors to malware distribution sites.
Likely Case
Attackers steal user session cookies, perform actions as logged-in users, or redirect users to phishing pages.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before execution.
🎯 Exploit Status
Reflected XSS vulnerabilities are commonly weaponized in phishing campaigns and require minimal technical skill to exploit.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.5.2 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Seriously Simple Stats. 4. Click 'Update Now' if available. 5. Alternatively, download version 1.5.2+ from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable plugin
allTemporarily disable the Seriously Simple Stats plugin until patched.
wp plugin deactivate seriously-simple-stats
Web Application Firewall rule
allAdd WAF rule to block XSS payloads targeting Seriously Simple Stats endpoints.
ModSecurity: SecRule REQUEST_URI "@rx /wp-content/plugins/seriously-simple-stats/" "phase:1,id:1001,block,msg:'XSS attempt on Seriously Simple Stats'"
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution sources
- Deploy web application firewall with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Seriously Simple Stats for version number. If version is 1.5.1 or lower, you are vulnerable.Check Version:
wp plugin get seriously-simple-stats --field=versionVerify Fix Applied:
After updating, verify plugin version shows 1.5.2 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- HTTP requests containing script tags or JavaScript in Seriously Simple Stats plugin URLs
- Unusual GET parameters with encoded script payloads
Network Indicators:
- HTTP requests to /wp-content/plugins/seriously-simple-stats/ with suspicious parameters
SIEM Query:
source="web_logs" AND uri="*seriously-simple-stats*" AND (query="*<script*" OR query="*javascript:*" OR query="*onload=*" OR query="*onerror=*")🔗 References
- https://patchstack.com/database/vulnerability/seriously-simple-stats/wordpress-seriously-simple-stats-plugin-1-5-1-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve
- https://patchstack.com/database/vulnerability/seriously-simple-stats/wordpress-seriously-simple-stats-plugin-1-5-1-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve
