Application Security
CWE-543 Singleton Without Synchronization: Thread Safety Bugs
A lazily created singleton in Java or C++ can be built twice or seen half built. How CWE-543 happens, with fixes that actually hold.
Oct 18, 20264 min read
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CWE-541 Sensitive Information in Include Files: What to Know
Include files often hold usernames and passwords. If the source is reachable, so are the secrets. How CWE-541 happens and how to fix it.
Oct 18, 20262 min read
Application Security
CWE-540 Sensitive Information in Source Code: Real Cases and Fixes
Tokens in JavaScript, passwords in HTML, hostnames in comments. How CWE-540 leaks secrets through code that users can read and how to prevent it.
Oct 18, 20264 min read
Application Security
CWE-54 Trailing Backslash Path Equivalence and ASP.NET Bypass
A trailing backslash or its encoded form %5C let attackers past directory authentication in a .NET web framework. CWE-54 explained.
Oct 18, 20263 min read
Application Security
CWE-539 Persistent Cookies With Sensitive Data: Risks and Fixes
Persistent cookies live on disk. Putting sensitive data in them widens who can read it. How CWE-539 happens and what to do instead.
Oct 18, 20262 min read
Application Security
CWE-538 Sensitive Data in Externally Accessible Files
Secrets written into files or directories that other people can read. How CWE-538 happens, including a real build log example, and how to fix it.
Oct 18, 20262 min read
Application Security
CWE-537 Java Runtime Error Messages: Keep Exceptions Off the Screen
Unhandled Java exceptions can show internals to users. A short guide to CWE-537 and the one rule MITRE gives for fixing it.
Oct 18, 20262 min read
Application Security
CWE-536 Servlet Runtime Error Messages: Stop Leaking Stack Traces
Uncaught exceptions in a Java servlet can show file paths and stack traces to visitors. How CWE-536 happens and how to contain it.
Oct 18, 20262 min read
Application Security
CWE-535 Shell Error Message Exposure: What It Reveals
A raw command shell error shown to a user signals unhandled exceptions and leaks internals. How CWE-535 happens and how to handle errors safely.
Oct 18, 20262 min read
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