以明文形式存儲用戶名可能會危及系統安全。
當來自用戶的用戶名被接受，或者以明文形式存儲在應用程序的配置文件或數據庫中時，就會出現 Credential Management 漏洞。
示例：以下代碼從 Web 表單中讀取一個用戶名并使用該用戶名連接到數據庫。
<cfquery name = "GetCredentials" dataSource = "master">
SELECT Username, Password
FROM Credentials
WHERE DataSource="users"
</cfquery>
...
<cfquery name = "GetSSNs" dataSource = "users"
username = "#Username#" password = "#Password#">
SELECT SSN
FROM Users
</cfquery>
...
master 表就能夠讀取 Username 和 Password 的值。而這給了心懷不軌的雇員利用這一信息破壞系統的機會。
[1] Standards Mapping - OWASP Top 10 2010 - (OWASP 2010) A7 Insecure Cryptographic Storage
[2] Standards Mapping - OWASP Top 10 2007 - (OWASP 2007) A8 Insecure Cryptographic Storage
[3] Standards Mapping - OWASP Top 10 2004 - (OWASP 2004) A8 Insecure Storage
[4] Standards Mapping - Security Technical Implementation Guide Version 3 - (STIG 3) APP3210.1 CAT II
[5] Standards Mapping - Security Technical Implementation Guide Version 3.4 - (STIG 3.4) APP3210.1 CAT II
[6] Standards Mapping - Common Weakness Enumeration - (CWE) CWE ID 522
[7] Standards Mapping - FIPS200 - (FISMA) MP
[8] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 - (PCI 1.2) Requirement 3.4, Requirement 6.3.1.3, Requirement 6.5.8
[9] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 - (PCI 2.0) Requirement 3.4, Requirement 6.5.3
[10] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 - (PCI 1.1) Requirement 3.4, Requirement 6.5.8