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How the CVE Works:
This vulnerability exploits improper input sanitization in XWiki’s REST API query endpoint when using Oracle databases. Attackers can inject malicious SQL queries via functions like `DBMS_XMLGEN` or DBMS_XMLQUERY. The XWiki query validator fails to restrict these native Oracle functions, allowing arbitrary SQL execution through Hibernate’s HQL queries. This bypasses security checks, enabling data theft, manipulation, or full database compromise.
DailyCVE Form:
Platform: XWiki
Version: 1.0 to 15.10.15, 16.0.0-rc-1 to 16.4.6, 16.5.0-rc-1 to 16.10.1
Vulnerability: SQL Injection
Severity: Critical
Date: Jun 12, 2025
Prediction: Patch expected by Jun 20, 2025
What Undercode Say:
Exploitation:
1. Payload Example:
SELECT DBMS_XMLGEN.getXML('SELECT FROM SYS.USER_TABLES') FROM DUAL
2. Exploit via REST API:
POST /rest/wikis/xwiki/spaces/Main/pages/WebHome/objects HTTP/1.1
Host: vulnerable-xwiki.com
Content-Type: application/x-www-form-urlencoded
Query: where=1=1 AND DBMS_XMLQUERY.getXML('SELECT FROM USER_PASSWORDS')=1
Protection:
1. Immediate Upgrade:
wget https://download.xwiki.org/xwiki/16.10.2/xwiki-platform-16.10.2.war
2. Database Firewall Rules:
REVOKE EXECUTE ON DBMS_XMLGEN FROM PUBLIC; REVOKE EXECUTE ON DBMS_XMLQUERY FROM PUBLIC;
3. Input Validation Patch:
// HQL Query Sanitization
public String sanitizeHQL(String query) {
if (query.matches(".DBMS_XML(GEN|QUERY).")) {
throw new SecurityException("Malicious SQL function detected");
}
}
Detection:
1. Log Analysis Command:
grep -r "DBMS_XML" /var/log/xwiki/
2. IDS Rule (Snort):
alert tcp any any -> $HOME_NET 8080 (msg:"XWiki SQLi Attempt"; content:"DBMS_XML"; sid:1000001;)
Mitigation:
- Disable REST query endpoints if unused.
- Apply least-privilege to Oracle database users.
- Monitor for unusual SQL execution patterns.
References:
- XWIKI-22734
- NVD/GitHub Advisory DB: CVE-2025-XXXX
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
