CVE-2026-3793
SQL Injection in SourceCodester Sales Invoice GET Parameter
Publication date: 2026-03-09
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 |
|---|---|---|
| ahsanriaz26gmailcom | sales_and_inventory_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?
[{'type': 'paragraph', 'content': "CVE-2026-3793 is a SQL injection vulnerability found in SourceCodester Sales and Inventory System version 1.0, specifically in the file sales_invoice1.php. The flaw exists in the handling of the GET parameter 'sellid', which is not properly sanitized. This allows an attacker, who must be authenticated, to inject arbitrary SQL commands into the backend MySQL database."}, {'type': 'paragraph', 'content': 'The vulnerability supports multiple SQL injection techniques including UNION-based, error-based, Boolean-based blind, and time-based blind SQL injections. Exploiting this flaw enables attackers to retrieve sensitive data, enumerate database schema, and potentially compromise the entire database.'}] [1, 2, 3]
How can this vulnerability impact me? :
This vulnerability can have serious impacts including unauthorized access to sensitive data stored in the database, such as sales and inventory records. Attackers can exfiltrate confidential information, manipulate or corrupt data, and compromise the integrity and availability of the system.
Because the attack can be performed remotely and without authentication in some cases, it increases the risk of exploitation. The vulnerability can lead to full database compromise, exposing business-critical information and potentially causing operational disruptions.
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 GET parameter 'sellid' in the sales_invoice1.php file for SQL injection flaws."}, {'type': 'paragraph', 'content': 'You can use automated tools like sqlmap to detect the vulnerability by sending crafted HTTP GET requests with malicious payloads to the parameter.'}, {'type': 'list_item', 'content': 'Example sqlmap command: sqlmap -u "http://127.0.0.1:8089/sales_invoice1.php?sellid=%22SD432%22" --batch -v 6 --risk=3 --cookie "PHPSESSID=YOUR_COOKIE_HERE"'}, {'type': 'list_item', 'content': "Manual testing can include sending payloads such as UNION-based, error-based, boolean-based, and time-based SQL injection strings to the 'sellid' parameter, for example:"}, {'type': 'list_item', 'content': 'UNION-based payload: sellid="SD432" UNION ALL SELECT NULL,CONCAT(0x716b766b71,0x6b7a65414a6377564f6b68466d7278765157646143586d7774437a5479536b466d505149,0x7170716a71),NULL,... --'}, {'type': 'list_item', 'content': 'Error-based payload: sellid=GTID_SUBSET(CONCAT(0x716b766b71,(SELECT (ELT(4180=4180,1))),0x7170716a71),4180)'}, {'type': 'list_item', 'content': 'Boolean-based payload: sellid="SD432" AND 1866=1866'}, {'type': 'list_item', 'content': 'Time-based payload: sellid="SD432" AND (SELECT 5819 FROM (SELECT(SLEEP(5)))CJlo)'}] [2]
What immediate steps should I take to mitigate this vulnerability?
[{'type': 'paragraph', 'content': 'There are no known countermeasures or patches published for this vulnerability.'}, {'type': 'paragraph', 'content': 'The recommended immediate mitigation is to replace or remove the affected component or product (SourceCodester Sales and Inventory System 1.0) to avoid exploitation.'}, {'type': 'paragraph', 'content': "Additionally, restricting access to the vulnerable endpoint and monitoring for suspicious activity related to the 'sellid' parameter can help reduce risk."}] [3]