CVE-2025-31375
📋 TL;DR
This CSRF vulnerability in the Scheduled WordPress plugin allows attackers to trick authenticated administrators into executing malicious actions without their consent, leading to stored cross-site scripting (XSS). Attackers can inject malicious scripts that execute in victims' browsers when they visit compromised pages. All WordPress sites using Scheduled plugin versions up to 1.0 are affected.
💻 Affected Systems
- Scheduled 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
Attackers could inject persistent malicious scripts that steal administrator credentials, hijack sessions, deface websites, or redirect users to malicious sites, potentially leading to complete site compromise.
Likely Case
Attackers create fake admin interfaces or forms that trick logged-in administrators into executing actions that inject malicious JavaScript into website content, affecting all visitors.
If Mitigated
With proper CSRF tokens and input validation, the attack vector is eliminated, preventing unauthorized actions even if administrators are tricked into clicking malicious links.
🎯 Exploit Status
Exploitation requires social engineering to trick authenticated administrators, but the technical execution is straightforward once the victim is tricked.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.1 or later
Vendor Advisory: https://patchstack.com/database/wordpress/plugin/scheduled/vulnerability/wordpress-scheduled-plugin-1-0-csrf-to-stored-xss-vulnerability?_s_id=cve
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Scheduled' plugin. 4. Click 'Update Now' if update available. 5. If no update available, deactivate and delete plugin, then install latest version from WordPress repository.
🔧 Temporary Workarounds
Implement CSRF Protection
allAdd CSRF tokens to all forms and actions in the plugin
Requires custom PHP development to modify plugin files
Disable Plugin
linuxTemporarily disable the Scheduled plugin until patched
wp plugin deactivate scheduled
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block CSRF attempts and XSS payloads
- Restrict admin access to trusted IP addresses only and implement multi-factor authentication
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for Scheduled plugin version. If version is 1.0 or earlier, you are vulnerable.Check Version:
wp plugin get scheduled --field=versionVerify Fix Applied:
After updating, verify Scheduled plugin version is 1.0.1 or later in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to Scheduled plugin endpoints without referrer headers
- Multiple failed admin login attempts followed by successful login and plugin modification
Network Indicators:
- HTTP requests containing malicious JavaScript payloads in POST parameters
- Requests to Scheduled plugin endpoints from unexpected sources
SIEM Query:
source="wordpress.log" AND ("scheduled" OR "wp-admin/admin-ajax.php") AND (POST AND NOT referer:*your-domain*)