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CVE-2026-109114

Severity:

HIGH RISK

(7.3)

Improper Authentication (CWE-287) in Restaurant System

CVE-2026-109114

Deferred

Vulnerability type

Category:

Improper Authentication

CWE:

CWE-287

Impact:

Unauthorized Access and Account Compromise

Severity:

HIGH RISK

(7.3)

CVSS version:

3.1

Catch this CVE while code is being written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.

Summary

A remotely reachable authentication weakness affects the login form in AdithyaYelloju Restaurant-Management-System. Manipulation of email or password handling may allow an attacker to bypass intended authentication checks and access functionality without valid credentials.

A remotely reachable authentication weakness affects the login form in AdithyaYelloju Restaurant-Management-System. Manipulation of email or password handling may allow an attacker to bypass intended authentication checks and access functionality without valid credentials.

Affected context

The vulnerability occurs in the application's User/login.php login component when user-supplied email and password values are processed without reliably enforcing authentication requirements. Deployments that expose this login endpoint over a network may be at risk, particularly where additional access controls or monitoring do not constrain repeated authentication attempts.

The vulnerability occurs in the application's User/login.php login component when user-supplied email and password values are processed without reliably enforcing authentication requirements. Deployments that expose this login endpoint over a network may be at risk, particularly where additional access controls or monitoring do not constrain repeated authentication attempts.

Exploit preconditions

  • Attack surface: The remotely accessible login form in User/login.php
  • Required access: Network access to the application's login endpoint; valid credentials may not be required if authentication checks can be bypassed
  • Trigger point: Processing of attacker-controlled email and passwd parameters during login
  • Why exploitation is possible: Authentication decisions may not correctly verify the submitted identity and password before granting access
  • Attack surface: The remotely accessible login form in User/login.php
  • Required access: Network access to the application's login endpoint; valid credentials may not be required if authentication checks can be bypassed
  • Trigger point: Processing of attacker-controlled email and passwd parameters during login
  • Why exploitation is possible: Authentication decisions may not correctly verify the submitted identity and password before granting access

Why this happens

The underlying issue is improper authentication, mapped to CWE-287. The login workflow appears to trust or inadequately validate authentication input, allowing the application to reach an authenticated state without consistently establishing that the requester has supplied valid credentials. This represents a failure to enforce an effective identity-verification boundary.

The underlying issue is improper authentication, mapped to CWE-287. The login workflow appears to trust or inadequately validate authentication input, allowing the application to reach an authenticated state without consistently establishing that the requester has supplied valid credentials. This represents a failure to enforce an effective identity-verification boundary.

Potential impact

  • An attacker may gain unauthorized access to user or administrative functionality.
  • Account data or application records could be viewed or modified.
  • Attackers could impersonate legitimate users.
  • The vulnerability could support further abuse of exposed management features.
  • An attacker may gain unauthorized access to user or administrative functionality.
  • Account data or application records could be viewed or modified.
  • Attackers could impersonate legitimate users.
  • The vulnerability could support further abuse of exposed management features.

General mitigation guidance

Mitigation generally focuses on making authentication decisions explicit, centralized, and secure by default.

Common defensive patterns include:

  • Validate credentials through a well-tested authentication mechanism rather than ad hoc parameter handling.
  • Treat all login parameters as untrusted and enforce strict input validation and normalization.
  • Ensure access is granted only after successful server-side verification of the intended identity and password.
  • Use consistent failure handling that does not disclose whether an account exists.
  • Apply least privilege to authenticated sessions and administrative roles.
  • Add rate limiting, multifactor authentication where appropriate, and session protections as layered controls.
  • Require security-focused tests for authentication bypass conditions in CI and deployment policies.

Mitigation generally focuses on making authentication decisions explicit, centralized, and secure by default.

Common defensive patterns include:

  • Validate credentials through a well-tested authentication mechanism rather than ad hoc parameter handling.
  • Treat all login parameters as untrusted and enforce strict input validation and normalization.
  • Ensure access is granted only after successful server-side verification of the intended identity and password.
  • Use consistent failure handling that does not disclose whether an account exists.
  • Apply least privilege to authenticated sessions and administrative roles.
  • Add rate limiting, multifactor authentication where appropriate, and session protections as layered controls.
  • Require security-focused tests for authentication bypass conditions in CI and deployment policies.

How teams detect issues like this

Detection can combine static analysis, code review, and runtime monitoring:

  • Search for login branches that grant sessions or privileges without a definitive credential-verification result.
  • Review uses of email and passwd parameters for missing validation, inconsistent comparisons, or client-side-only checks.
  • Test authentication failure, empty-input, malformed-input, and boundary cases using authorized security testing.
  • Monitor logs for repeated failed attempts, unusual successful logins, and access from unexpected locations.
  • Enforce code-review policies requiring centralized authentication logic and negative authentication tests.
  • Automated security scanners and review tools may help identify exposed login endpoints and suspicious authentication control flow.

Detection can combine static analysis, code review, and runtime monitoring:

  • Search for login branches that grant sessions or privileges without a definitive credential-verification result.
  • Review uses of email and passwd parameters for missing validation, inconsistent comparisons, or client-side-only checks.
  • Test authentication failure, empty-input, malformed-input, and boundary cases using authorized security testing.
  • Monitor logs for repeated failed attempts, unusual successful logins, and access from unexpected locations.
  • Enforce code-review policies requiring centralized authentication logic and negative authentication tests.
  • Automated security scanners and review tools may help identify exposed login endpoints and suspicious authentication control flow.

Sources

SourceLink
github.comgithub.com/AdithyaYelloju/Restaurant-Management-System/
github.comgithub.com/AdithyaYelloju/Restaurant-Management-System/issues/11
vuldb.comvuldb.com/cve/CVE-2026-109114
vuldb.comvuldb.com/submit/955105
vuldb.comvuldb.com/vuln/416871
vuldb.comvuldb.com/vuln/416871/cti

Frequently asked

questions

Yes. The affected login form is described as remotely reachable, so an attacker with network access to the endpoint may attempt exploitation without local system access.

The reported weakness concerns improper authentication, so valid credentials may not be required if the login workflow accepts manipulated input without correctly verifying identity.

Use centralized, server-side credential verification and make authenticated session creation conditional on an explicit successful result from that verification.

Treat login input as untrusted, apply consistent authentication and authorization checks, use negative security tests, add rate limiting and multifactor authentication where suitable, and monitor authentication events.

Yes. The affected login form is described as remotely reachable, so an attacker with network access to the endpoint may attempt exploitation without local system access.

The reported weakness concerns improper authentication, so valid credentials may not be required if the login workflow accepts manipulated input without correctly verifying identity.

Use centralized, server-side credential verification and make authenticated session creation conditional on an explicit successful result from that verification.

Treat login input as untrusted, apply consistent authentication and authorization checks, use negative security tests, add rate limiting and multifactor authentication where suitable, and monitor authentication events.

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