CVE-2026-4581
SQL Injection in Simple Laundry System /checklogin.php Allows Remote Exploit
Publication date: 2026-03-23
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 |
|---|---|---|
| code-projects | simple_laundry_system | 1.0 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| 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. |
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
CVE-2026-4581 is a critical SQL injection vulnerability found in version 1.0 of the Simple Laundry System project, specifically in the /checklogin.php file.
The vulnerability arises because the userName parameter is improperly handled and directly incorporated into SQL queries without adequate input validation or sanitization.
This flaw allows attackers to inject malicious SQL code remotely, enabling unauthorized manipulation of database queries.
- Vulnerable Parameter: userName (sent via POST request)
- Attack Types Demonstrated: Boolean-based blind SQL injection, Error-based SQL injection, Time-based blind SQL injection
No authentication or login is required to exploit this vulnerability.
How can this vulnerability impact me? :
This vulnerability can have severe impacts including unauthorized database access, leakage of sensitive data, modification or deletion of data, and potential takeover of the affected system.
Attackers can disrupt services and compromise business continuity by exploiting this flaw.
Because exploitation requires no authentication, the risk is elevated as attackers can remotely execute attacks without prior access.
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 `userName` parameter in the `/checklogin.php` file for SQL injection flaws. Since the parameter is sent via POST requests, you can use SQL injection payloads to verify if the system is vulnerable.'}, {'type': 'list_item', 'content': "Use boolean-based blind SQL injection payloads such as: userName=admin' AND 6372=6372 AND 'QDJO'='QDJO"}, {'type': 'list_item', 'content': "Use error-based SQL injection payloads exploiting MySQL error messages, for example: userName=admin' AND (SELECT 3567 FROM(SELECT COUNT(*),CONCAT(...))...)"}, {'type': 'list_item', 'content': "Use time-based blind SQL injection payloads causing delays, e.g.: userName=admin' AND (SELECT 7929 FROM (SELECT(SLEEP(5)))...)"}, {'type': 'paragraph', 'content': 'Additionally, automated tools like sqlmap can be used with crafted payloads targeting the `userName` parameter to detect this vulnerability.'}] [1]
What immediate steps should I take to mitigate this vulnerability?
Immediate mitigation steps include:
- Use prepared statements with parameter binding to separate SQL code from user input, preventing SQL injection.
- Implement strict input validation and filtering to ensure inputs conform to expected formats.
- Limit database user permissions to the minimum necessary, avoiding use of high-privilege accounts like root or admin for routine operations.
- Conduct regular security audits of code and systems to detect and remediate vulnerabilities promptly.