CVE-2025-28885
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the Fiverr.com Official Search Box WordPress plugin allows attackers to inject malicious scripts that execute when other users view affected pages. The vulnerability affects all WordPress sites using this plugin from version 1.0.8 and earlier. Attackers can steal session cookies, redirect users, or perform actions on their behalf.
💻 Affected Systems
- Fiverr.com Official Search Box 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 credentials, take over WordPress sites, install backdoors, deface websites, or redirect visitors to malicious sites.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies, potentially compromising user accounts and performing unauthorized actions.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before execution, preventing exploitation.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited and require minimal technical skill. The vulnerability is in a public-facing component.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.9 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Fiverr.com Official Search Box'. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 1.0.9+ from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate fiverr-official-search-box
Implement WAF Rules
allAdd web application firewall rules to block XSS payloads
ModSecurity: SecRule ARGS "<script" "id:1001,phase:2,deny,status:403,msg:'XSS Attempt'"
Cloudflare WAF: Enable XSS protection rules
🧯 If You Can't Patch
- Remove the Fiverr search box functionality from your site
- Implement Content Security Policy (CSP) headers to restrict script execution
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Fiverr.com Official Search Box version. If version is 1.0.8 or earlier, you are vulnerable.Check Version:
wp plugin get fiverr-official-search-box --field=versionVerify Fix Applied:
After updating, verify plugin version shows 1.0.9 or later in WordPress admin. Test search functionality with basic XSS payloads like <script>alert('test')</script> to ensure sanitization.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to search endpoints containing script tags
- Multiple failed attempts with XSS payloads in query parameters
- User agents containing malicious script fragments
Network Indicators:
- HTTP requests with <script> tags in parameters
- Unusual outbound connections after search submissions
- Multiple redirects originating from search pages
SIEM Query:
source="web_logs" AND (uri_path="*search*" OR uri_path="*fiverr*") AND (http_query="*<script>*" OR http_query="*javascript:*" OR http_query="*onerror=*" OR http_query="*onload=*")