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CVE-2026-4991 — AI Deep Analysis Summary

CVSS 3.5 · Low

Q1What is this vulnerability? (Essence + Consequences)

🚨 **Essence**: Cross-Site Scripting (XSS) vulnerability in the QDOCS Admission Query module. 💥 **Consequence**: Attackers can inject malicious scripts to steal user cookies or session information.

Q2Root Cause? (CWE/Flaw)

🔍 **Root Cause**: The frontend fails to effectively filter input parameters for the "Admission Query". ⚠️ **Vulnerability Point**: User-controllable data is directly rendered on the page, triggering the browser to execut…

Q3Who is affected? (Versions/Components)

🏫 **Affected Component**: QDOCS Smart School Management System. 📉 **Version Range**: Version 7.2 is explicitly mentioned as containing this vulnerability.

Q4What can hackers do? (Privileges/Data)

🕵️‍♂️ **Attacker Privileges**: Requires low privileges (PR:L), typically requiring login. 📂 **Data Theft**: Can obtain sensitive information of the currently logged-in user or perform phishing operations.

Q5Is exploitation threshold high? (Auth/Config)

🚪 **Exploitation Threshold**: Medium. 🔑 **Prerequisites**: The attacker must induce the victim (UI:R) to click a malicious link, and the target must possess login privileges.

Q6Is there a public Exp? (PoC/Wild Exploitation)

🛠️ **Existing Tools**: No public PoC code available (pocs list is empty). 🌐 **In-the-Wild Status**: Third-party security reports have been submitted; vigilance against potential exploitation is required.

Q7How to self-check? (Features/Scanning)

🔎 **Self-Check Method**: Focus on scanning the entry point of the "Admission Query" function. 🧪 **Test Characteristics**: Inject `<script>` tags into query parameters and observe if they are reflected and executed.

Q8Is it fixed officially? (Patch/Mitigation)

🛡️ **Official Status**: Data does not explicitly provide an official patch link. 📝 **Recommendation**: Monitor official QDOCS announcements and wait for the release of security updates.

Q9What if no patch? (Workaround)

🚧 **Temporary Mitigation**: Deploy WAF rules to intercept XSS signatures. 🔒 **Access Control**: Restrict the IP range for accessing the "Admission Query" page or add two-factor authentication.

Q10Is it urgent? (Priority Suggestion)

🔥 **Urgency**: Medium to High Risk (CVSS 3.1). 📅 **Priority**: Recommended to investigate as soon as possible, with special protection required during the school admission season.