CVE-2025-31837
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the WP Proposals WordPress plugin allows attackers to inject malicious scripts into web pages. When exploited, these scripts execute in victims' browsers, potentially stealing session cookies or performing actions on their behalf. All WordPress sites using WP Proposals version 2.3 or earlier are affected.
💻 Affected Systems
- WP Proposals 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 steal administrator session cookies, take over WordPress sites, deface websites, or redirect visitors to malicious sites.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies or credentials, potentially compromising user accounts.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited, though specific exploit details for this CVE aren't publicly documented.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.4 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find WP Proposals and click 'Update Now'. 4. If no update is available, deactivate and delete the plugin immediately.
🔧 Temporary Workarounds
Disable WP Proposals Plugin
allTemporarily disable the vulnerable plugin until patched version is available
wp plugin deactivate wp-proposals
Implement Content Security Policy
allAdd CSP headers to mitigate XSS impact
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";
🧯 If You Can't Patch
- Disable or remove the WP Proposals plugin completely
- Implement web application firewall (WAF) rules to block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for WP Proposals version 2.3 or earlierCheck Version:
wp plugin list --name=wp-proposals --field=versionVerify Fix Applied:
Verify WP Proposals plugin version is 2.4 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WP Proposals endpoints
- JavaScript payloads in form submissions or URL parameters
Network Indicators:
- Suspicious JavaScript in HTTP requests to /wp-content/plugins/wp-proposals/
SIEM Query:
source="wordpress.log" AND "wp-proposals" AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")