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PatchSiren cyber security CVE debrief

CVE-2026-9412 SourceCodester CVE debrief

A low-severity improper access control vulnerability affects SourceCodester Indian Invoicing System 1.0. The vulnerability resides in an unspecified backend endpoint and allows remote attackers to manipulate access controls. The issue was published on May 25, 2026, and modified on May 26, 2026. The exploit has been publicly disclosed and may be utilized. Multiple endpoints are affected. The vulnerability is not listed in CISA KEV. Vendor attribution is uncertain based on available evidence.

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
2026-05-26
Advisory published
2026-05-25
Advisory updated
2026-05-26

Who should care

Organizations using SourceCodester Indian Invoicing System 1.0; security teams managing PHP-based invoicing applications; administrators responsible for access control configurations

Technical summary

The vulnerability involves improper access controls in backend endpoints of SourceCodester Indian Invoicing System 1.0. Attackers with low privileges can remotely manipulate access controls across multiple endpoints. The CVSS 4.0 score of 2.1 reflects limited impact scope. Public exploit disclosure increases immediate risk despite low severity rating. Specific affected functions are not identified in available sources.

Defensive priority

low

Recommended defensive actions

  • Review and restrict access controls on all backend endpoints in SourceCodester Indian Invoicing System 1.0
  • Audit authentication and authorization mechanisms for privilege escalation vectors
  • Monitor for unauthorized access attempts to backend administrative functions
  • Apply principle of least privilege to all user roles and endpoint access
  • Review the publicly disclosed technical details to identify affected endpoints and implement compensating controls
  • Contact SourceCodester for patch availability or consider discontinuing use of the affected software version

Evidence notes

CVE description indicates public exploit availability. CVSS 4.0 vector shows network attack vector with low privileges required. CWE-266 (Incorrect Privilege Assignment) and CWE-284 (Improper Access Control) identified. Vuldb references include a GitHub gist and submission records. NVD status is 'Deferred'.

Official resources

public