CVE-2026-3981
SQL Injection in itsourcecode Online Doctor Appointment System
Publication date: 2026-03-12
Last updated on: 2026-04-29
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| unguardable | online_doctor_appointment_system | 1.0 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-89 | The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data. |
| CWE-74 | The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
[{'type': 'paragraph', 'content': "CVE-2026-3981 is a critical SQL injection vulnerability found in version 1.0 of the Online Doctor Appointment System, specifically in the file /admin/doctor_action.php. The vulnerability occurs because the application improperly handles the 'id' parameter, which is accepted via POST requests without adequate input validation or sanitization."}, {'type': 'paragraph', 'content': 'Attackers can inject malicious SQL code through this parameter, allowing them to manipulate SQL queries directly. This can be exploited remotely without any authentication or authorization, making it highly accessible.'}, {'type': 'paragraph', 'content': 'The exploitation method includes time-based blind SQL injection targeting MySQL databases, enabling attackers to perform unauthorized database operations such as data leakage, data tampering, and potentially gaining full control over the system or causing service disruptions.'}] [1, 2, 3]
How can this vulnerability impact me? :
This vulnerability can have severe impacts including unauthorized access to the database, allowing attackers to retrieve, modify, or delete sensitive data.
Attackers may also disrupt the availability of the system, potentially causing service outages or full system compromise.
Since no authentication is required to exploit this flaw, the risk of exploitation is high, which can lead to loss of data confidentiality, integrity, and availability.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
[{'type': 'paragraph', 'content': "This vulnerability can be detected by testing the vulnerable parameter 'id' in the /admin/doctor_action.php file for SQL injection. One method is to use time-based blind SQL injection payloads, such as injecting: id=6' AND (SELECT 3996 FROM (SELECT(SLEEP(5)))ZXFB) AND 'bRfB'='bRfB."}, {'type': 'paragraph', 'content': 'Automated tools like sqlmap can be used to confirm the vulnerability by extracting database information through the vulnerable parameter.'}, {'type': 'paragraph', 'content': 'Additionally, attackers can locate vulnerable targets using Google Dorking with the query: inurl:admin/doctor_action.php.'}, {'type': 'list_item', 'content': 'Example sqlmap command to test the vulnerability: sqlmap -u "http://target.com/admin/doctor_action.php" --data="id=6&action=change_status&status=Active&next_status=Inactive" --technique=T --dbms=MySQL'}, {'type': 'list_item', 'content': 'Manual test example using curl with time-based payload: curl -X POST -d "id=6\' AND (SELECT SLEEP(5))-- &action=change_status&status=Active&next_status=Inactive" http://target.com/admin/doctor_action.php'}] [1, 3]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include implementing prepared statements with parameter binding to separate SQL code from user input, preventing SQL injection.
Strict input validation and filtering should be applied to ensure that inputs conform to expected formats.
Minimize database user permissions by avoiding the use of high-privilege accounts such as root or admin for routine database operations.
Conduct regular security audits to detect and remediate vulnerabilities promptly.
If possible, replace the affected software with an alternative product that does not contain this vulnerability.