CVE-2026-8126
SQL Injection in SourceCodester Comment System
Publication date: 2026-05-08
Last updated on: 2026-05-08
Assigner: VulDB
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| sourcecodester | comment_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?
CVE-2026-8126 is a vulnerability in SourceCodester Comment System 1.0, specifically in the post_comment.php file. It is caused by improper input validation of the 'name' parameter, which is used directly in SQL queries without sanitization. This allows an attacker to perform SQL injection by manipulating the 'name' argument.
Through this SQL injection, attackers can inject malicious SQL code remotely without needing login credentials. They can use techniques such as error-based or time-based blind SQL injection to extract sensitive information from the database or disrupt the system.
How can this vulnerability impact me? :
This vulnerability can lead to unauthorized access to the database, allowing attackers to view, manipulate, or delete sensitive data. It can also result in system compromise, data breaches, and service disruption.
- Unauthorized database access
- Data manipulation or deletion
- Potential system compromise
- Service disruption
How can this vulnerability be detected on my network or system? Can you suggest some commands?
The vulnerability in post_comment.php can be detected by testing the 'name' parameter for SQL injection flaws. Tools like sqlmap can be used to confirm the ability to extract database information via error-based or time-based blind SQL injection techniques.
- Use sqlmap to test the vulnerable parameter: sqlmap -u "http://targetsite/post_comment.php?name=example" --batch
- Manually test by injecting SQL payloads into the 'name' parameter and observe for database errors or unusual responses.
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include implementing prepared statements to safely handle SQL queries, validating and sanitizing all user inputs, especially the 'name' parameter, and restricting database user permissions to limit the impact of any potential exploitation.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
The SQL injection vulnerability in SourceCodester Comment System 1.0 allows attackers to gain unauthorized access to the database and extract sensitive information without authentication.
Such unauthorized access and potential data leakage can lead to violations of data protection regulations like GDPR and HIPAA, which require the protection of personal and sensitive data against unauthorized access and breaches.
Failure to remediate this vulnerability may result in non-compliance with these standards, exposing organizations to legal and financial penalties.