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PatchSiren cyber security CVE debrief

CVE-2026-9411 SourceCodester CVE debrief

A SQL injection vulnerability exists in SourceCodester Indian Invoicing System 1.0, specifically within the /Invoicing/IGST_Invoice.php file's Invoice Generation Handler component. The vulnerability allows remote attackers to manipulate the customer_name or category parameters to inject malicious SQL commands. The CVSS 4.0 vector indicates network attack vector with low attack complexity, requiring low privileges but no user interaction, with low impacts to confidentiality, integrity, and availability. The exploit has been publicly disclosed. The CVE was published on 2026-05-25 and last modified on 2026-05-26. The vulnerability is classified under CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component) and CWE-89 (Improper Neutralization of Special Elements in an SQL Command).

Vendor
SourceCodester
Product
Indian Invoicing System
CVSS
LOW 2.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-25
Original CVE updated
2026-07-23
Advisory published
2026-05-25
Advisory updated
2026-07-23

Who should care

Organizations running SourceCodester Indian Invoicing System 1.0; security teams monitoring for SQL injection attacks; developers maintaining PHP-based invoicing applications

Technical summary

The vulnerability resides in the IGST_Invoice.php file of SourceCodester Indian Invoicing System 1.0. Insufficient input validation on the customer_name and category parameters allows attackers to inject arbitrary SQL commands. The attack can be executed remotely with low privileges. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/E:P) indicates network accessibility, low complexity, and public exploit availability with low impact across confidentiality, integrity, and availability dimensions.

Defensive priority

medium

Recommended defensive actions

  • Review and sanitize all user inputs to the customer_name and category parameters in IGST_Invoice.php
  • Implement parameterized queries or prepared statements to prevent SQL injection
  • Apply principle of least privilege to database accounts used by the application
  • Monitor for suspicious database query patterns and failed authentication attempts
  • Consider web application firewall (WAF) rules to detect and block SQL injection attempts
  • Review access logs for exploitation attempts against /Invoicing/IGST_Invoice.php

Evidence notes

Vulnerability identified in SourceCodester Indian Invoicing System 1.0. Affected endpoint: /Invoicing/IGST_Invoice.php. Vulnerable parameters: customer_name, category. CVSS 4.0 score: 2.1 (LOW). Public exploit available per Vuldb submission.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-9411 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-9411

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-9411 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-9411

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.