CVE-2025-28978
📋 TL;DR
This vulnerability allows attackers to inject malicious scripts into web pages generated by the SB Breadcrumbs WordPress plugin. When users visit a specially crafted URL, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. All WordPress sites using SB Breadcrumbs version 1.0 or earlier are affected.
💻 Affected Systems
- SB Breadcrumbs 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 steal user session cookies or credentials, perform actions on behalf of authenticated users, or redirect users to phishing pages.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers.
🎯 Exploit Status
Reflected XSS vulnerabilities are commonly exploited and require minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Restart Required: No
Instructions:
1. Remove the SB Breadcrumbs plugin from your WordPress installation. 2. Install an alternative breadcrumbs plugin from the official WordPress repository.
🔧 Temporary Workarounds
Web Application Firewall (WAF)
allDeploy a WAF with XSS protection rules to block malicious requests before they reach the vulnerable plugin.
Input Validation Filter
allImplement server-side input validation to sanitize all user-supplied data before processing.
🧯 If You Can't Patch
- Disable or remove the SB Breadcrumbs plugin immediately
- Implement Content Security Policy (CSP) headers to restrict script execution sources
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for 'SB Breadcrumbs' version 1.0 or earlier.Check Version:
wp plugin list --name=sb-breadcrumbs --field=versionVerify Fix Applied:
Confirm the SB Breadcrumbs plugin is no longer installed or active in your WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual GET/POST requests with script tags or JavaScript payloads in URL parameters
- Multiple 404 errors for breadcrumbs-related endpoints
Network Indicators:
- HTTP requests containing <script> tags or JavaScript code in query parameters
- Outbound connections to suspicious domains following breadcrumbs page visits
SIEM Query:
source="wordpress.log" AND ("sb-breadcrumbs" OR "breadcrumbs") AND ("<script>" OR "javascript:" OR "onerror=" OR "onload=")