CVE-2025-10357
📋 TL;DR
The Simple SEO WordPress plugin before version 2.0.32 contains a stored Cross-Site Scripting (XSS) vulnerability. Users with contributor-level permissions or higher can inject malicious scripts into pages, which execute when other users view those pages. This affects WordPress sites using vulnerable versions of the Simple SEO plugin.
💻 Affected Systems
- Simple SEO WordPress 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
An attacker with contributor access could inject malicious scripts that steal administrator credentials, redirect users to malicious sites, or deface the website when viewed by other users.
Likely Case
A malicious contributor could inject scripts that display unwanted content or capture session cookies from users viewing affected pages.
If Mitigated
With proper user access controls and content filtering, the impact is limited to potential content manipulation within the contributor's own posts.
🎯 Exploit Status
Exploitation requires contributor-level access to WordPress. The vulnerability is in parameter output without proper sanitization/escaping.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.0.32
Vendor Advisory: https://wpscan.com/vulnerability/24fcf8ef-603f-4e1f-905d-fbaf989a617f/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Simple SEO plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 2.0.32+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Temporarily disable plugin
WordPressDisable the Simple SEO plugin until patched
wp plugin deactivate simple-seo
Restrict user roles
WordPressTemporarily remove contributor roles or limit who can create/edit posts
🧯 If You Can't Patch
- Implement strict Content Security Policy (CSP) headers to limit script execution
- Use web application firewall (WAF) rules to block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Simple SEO → Version. If version is below 2.0.32, you are vulnerable.Check Version:
wp plugin get simple-seo --field=versionVerify Fix Applied:
After updating, verify Simple SEO plugin version shows 2.0.32 or higher in WordPress admin.📡 Detection & Monitoring
Log Indicators:
- Unusual post/page edits by contributors
- Script tags in post content containing suspicious JavaScript
Network Indicators:
- Outbound connections to suspicious domains from your WordPress site
SIEM Query:
source="wordpress.log" AND ("script" OR "javascript" OR "onclick" OR "onload") AND user_role="contributor"