Application Security
CWE-833 Deadlock: When Threads Wait for Each Other Forever
Deadlock is a denial of service you build yourself. CWE-833 explains lock ordering problems, the impact, and the habits that prevent a hang.
Oct 18, 20262 min read
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CWE-832 Unlock of a Resource that is not Locked
Unlocking a mutex you never locked can corrupt memory or crash the system. CWE-832 shows up in error paths. Here is how to prevent it.
Oct 18, 20262 min read
Application Security
CWE-831 Signal Handler Function Associated with Multiple Signals
One handler for several signals can be interrupted by a different signal mid run. CWE-831 explains the race and the simple way to avoid it.
Oct 18, 20262 min read
Application Security
CWE-830 Inclusion of Web Functionality from an Untrusted Source
A third party script runs with your site's full privileges. CWE-830 covers widgets and scripts included from other domains, and how to limit the risk.
Oct 18, 20263 min read
Application Security
CWE-83 XSS in Attributes: javascript URIs and Event Handlers
Event handlers like onerror and onmouseover and javascript URIs in attributes can all run script. CWE-83 explains how filters miss them and how to fix it.
Oct 18, 20262 min read
Application Security
CWE-829: Including Code from an Untrusted Control Sphere
Importing a library or script from a source you do not control hands that source your process. CWE-829 explains the risk for packages, includes and plugins.
Oct 18, 20264 min read
Application Security
CWE-828 Signal Handlers That Are Not Asynchronous-Safe
A signal handler can interrupt your program at any instruction. If it calls unsafe functions, state gets corrupted. Here is how CWE-828 works and how to fix it.
Oct 18, 20264 min read
Application Security
CWE-827 Improper Control of Document Type Definition (DTD)
Letting an attacker point your XML parser at a DTD can expose files, trigger internal requests and burn resources. Here is what CWE-827 means and how to block it.
Oct 18, 20263 min read
Application Security
CWE-826 Premature Release of Resource During Expected Lifetime
Releasing a resource that someone is still using is its own weakness. CWE-826 explains the risk and how to track lifetimes correctly.
Oct 18, 20262 min read
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