CVE-2025-57393
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in Kissflow Work Platform allows attackers to inject malicious scripts that execute when users view affected content. Organizations using Kissflow Application Versions 7337 Account v2.0 through v4.2 are affected, potentially compromising user sessions and data.
💻 Affected Systems
- Kissflow Work Platform
⚠️ 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, hijack user sessions, deface applications, or perform actions on behalf of authenticated users, potentially leading to complete system compromise.
Likely Case
Attackers inject malicious scripts to steal session cookies or credentials from users who view the compromised content, leading to unauthorized access to sensitive business data.
If Mitigated
With proper input validation and output encoding, the risk is limited to minor data leakage or temporary session disruption.
🎯 Exploit Status
Exploitation requires the ability to inject payloads into stored content areas; public GitHub repository contains proof-of-concept details.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: http://kissflow.com
Restart Required: No
Instructions:
1. Monitor Kissflow vendor communications for security updates. 2. Apply patches when available. 3. Test in non-production environment first.
🔧 Temporary Workarounds
Input Validation and Sanitization
allImplement server-side validation and sanitization of all user inputs to prevent XSS payload injection.
Content Security Policy (CSP)
allDeploy a strict Content Security Policy to restrict script execution sources and mitigate XSS impact.
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payload patterns
- Restrict user permissions to minimize injection points and monitor for suspicious content creation
🔍 How to Verify
Check if Vulnerable:
Review application version in Kissflow admin panel and check if within affected range v2.0 to v4.2.Check Version:
Check Kissflow application settings or admin interface for version information.Verify Fix Applied:
Test input fields for XSS vulnerabilities using safe payloads after applying vendor patches.📡 Detection & Monitoring
Log Indicators:
- Unusual content creation/modification patterns
- Requests containing script tags or JavaScript payloads in parameters
Network Indicators:
- Unexpected outbound connections to external domains from user sessions
SIEM Query:
source="kissflow_logs" AND (message="*<script>*" OR message="*javascript:*")