CVE-2026-13498 - restaurant-management-system forgotpassword email SQL injection

CVE-2026-13498 - restaurant-management-system forgotpassword email SQL injection - High - 2026-06-28

Business risk: SQL injection in a password-reset endpoint can expose customer/admin accounts and compromise ordering operations.

Root cause: The email POST parameter is interpolated into the password-reset SQL query.

Affected versions

  • Vulnerable: yashpokharna2555 restaurent-management-system forgotpassword.php POST email handler; no versioned fixed release was listed in NVD.
  • Fixed / safe target: Patch forgotpassword.php to bind email parameters, normalize email input, and avoid disclosing account existence.
  • CVSS: 7.3 (High)

Exact vulnerable code pattern

$email = $_POST['email'];
$query = "SELECT * FROM users WHERE email = '$email'";
$user = mysqli_fetch_assoc(mysqli_query($conn, $query));

Fixed / mitigated code pattern

$email = filter_input(INPUT_POST, 'email', FILTER_VALIDATE_EMAIL);
if (!$email) {
    http_response_code(400);
    exit('invalid email');
}
$stmt = $pdo->prepare('SELECT id, email FROM users WHERE email = :email LIMIT 1');
$stmt->execute(['email' => $email]);

Step-by-step integration guide

  1. Patch forgotpassword.php and copied reset handlers.
  2. Migrate database calls to prepared statements.
  3. Return a generic reset response.
  4. Add injection tests for email.
  5. Review password-reset logs and rotate admin credentials if needed.

Alternative mitigations

  • Temporarily disable public password reset.
  • WAF-block SQL metacharacters in forgotpassword.php email requests.
  • Limit database user privileges and enable query logging.

Detection signature

rg -n "forgotpassword\.php|\$_POST\[.email|SELECT .*email.*\$|mysqli_query" .

Copy-paste skill block

Model context: this prompt was generated by GPT 5.5 Extra High reasoning.

Remediate CVE-2026-13498: restaurant-management-system forgotpassword email SQL injection.

Required output:
- A reviewer-ready PR with dependency/config/code changes, tests, and deployment notes; or
- TRIAGE.md if the affected runtime is outside this repository.

Steps:
1. Confirm exposure using the detection signature above.
2. Apply the fixed or mitigated pattern.
3. Add or run a regression test for the exploit shape.
4. Record commands, versions, and residual risk in the PR body.

Boundaries:
- Scope only CVE-2026-13498 and directly related hardening.
- Do not run destructive exploit payloads against production.
- Preserve existing behavior except for the vulnerable path.

Tags and revenue routing

  • Keywords: cve, php, sql-injection, password-reset, restaurant-management, sellable_to_smb, zero_day_gold, high
  • Affected tech stack: php
  • Revenue tags: sellable_to_smb, zero_day_gold

References