A flaw has been found in thinkgem JeeSite up to 5.15.1. Impacted is an unknown function of the file /com/jeesite/common/shiro/cas/CasOutHandler.java of the component Endpoint. Executing a manipulation can lead to xml external entity reference. The attack may be performed from remote. Attacks of this nature are highly complex. The exploitability is considered difficult. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVE-2026-3404 is an XML External Entity (XXE) injection vulnerability in thinkgem JeeSite up to version 5.15.1 affecting the CasOutHandler endpoint. The flaw allows remote attackers to perform XXE attacks through manipulation of unspecified functions, though exploitation is considered difficult and requires complex attack techniques.
ثغرة حقن كيان XML خارجي (XXE) موجودة في مكون معالج CAS في thinkgem JeeSite الإصدارات حتى 5.15.1. يمكن للمهاجمين البعيدين استغلال هذه الثغرة للوصول إلى الملفات الحساسة أو تنفيذ هجمات الحرمان من الخدمة. على الرغم من أن الاستغلال معقد، فقد تم نشر الاستغلال بالفعل.
This XXE vulnerability in JeeSite's CAS authentication handler could allow remote attackers to read sensitive files or perform denial of service attacks against Saudi organizations using this framework. The difficulty of exploitation and lack of vendor response present ongoing security risks for affected deployments.
Upgrade thinkgem JeeSite to a patched version beyond 5.15.1 immediately. Implement input validation and XML parsing restrictions to disable external entity processing. Apply Web Application Firewall (WAF) rules to detect and block XXE attack patterns. Monitor endpoint /com/jeesite/common/shiro/cas/CasOutHandler.java for suspicious XML payloads.
قم بترقية thinkgem JeeSite إلى إصدار مصحح أحدث من 5.15.1 فوراً. طبق التحقق من صحة المدخلات وقيود معالجة XML لتعطيل معالجة الكيانات الخارجية. طبق قواعد جدار حماية تطبيقات الويب للكشف عن هجمات XXE. راقب نقطة النهاية للنشاط المريب المتعلق بحمولات XML.