CVE-2026-4568: SourceCodester Sales and Inventory System HTTP GET Request update_supplier.php sql injection
A vulnerability was found in SourceCodester Sales and Inventory System 1.0. This affects an unknown function of the file /update_supplier.php of the component HTTP GET Request Handler. The manipulation of the argument sid results in sql injection. The attack may be launched remotely. The exploit has been made public and could be used.
Security readout for executives and security teams
Plain-English summary
CVE-2026-4568 affects SourceCodester Sales and Inventory System 1.0. A supplier update page accepts a GET parameter that can be manipulated for SQL injection. This may expose or alter database data. Public proof-of-concept material exists, but the provided sources do not show confirmed active exploitation.
Executive priority
Prioritize if this system stores operational, customer, supplier, or financial inventory data. Public exploit availability raises urgency, but authentication appears required and no active exploitation is cited. Address during near-term remediation unless the application is internet-facing or business-critical.
Technical view
The issue is in /update_supplier.php, in the HTTP GET request handler. Manipulating the sid argument can trigger SQL injection, mapped to CWE-89 and CWE-74. VulDB rates it CVSS v2 6.5 with network access, low complexity, and single authentication required.
Likely exposure
Exposure applies to organizations running SourceCodester Sales and Inventory System 1.0. Risk is higher where the application is reachable over the internet or broad internal networks. The CVSS vector indicates authentication is required, so exposure may depend on account access and session controls.
Exploitation context
VulDB states the exploit has been made public and could be used. The source bundle marks KEV as false, and no cited source confirms exploitation in the wild. Treat this as credible public exploit availability, not confirmed active exploitation.
Researcher notes
Evidence is mainly from VulDB, CVE records, and a public PoC reference. The affected function is described as unknown, so validation should focus on the sid parameter path in update_supplier.php. No vendor-confirmed patch details are included in the provided bundle.
Mitigation direction
Identify whether SourceCodester Sales and Inventory System 1.0 is deployed.
Check SourceCodester and project guidance for an official fix or updated release.
Restrict access to the application to trusted users and networks.
If maintaining the code, parameterize database queries handling sid.
Review authorization and session controls for supplier update functions.
Validation and detection
Confirm application name and version against asset inventory.
Check whether /update_supplier.php is present and reachable.
Review code handling the sid GET parameter for unsafe SQL construction.
Search application logs for unusual supplier update requests involving sid.
Validate that database errors are not exposed to users.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
cwe · low confidence lookup
CWE-74: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Injection into data stores can inform collection, data access, and exfiltration detection reviews. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
CWE-74 · source CWE mapping
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.