Security context
What an agent needs to avoid regressing past fixes and find the next vuln in this repo.
zendframework/zend-filter
master @ 69f70df
4
Fixes
0
CVEs
HIGH
Peak severity
0.0%
Coverage
Highlights
Path Traversal: 2 prior fixes. Scrutinize any change in this area.
RenameUpload.php: most-fixed (1 issue). Treat as high-risk during review.
3 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Path Traversal: Allowing user-controlled filenames in file upload filters can lead to path traversal and arbitrary file write if default behaviors prioritize client-provided names. This risk was mitigated by disabling the 'use_upload_name' option by default.
Auth Bypass: Using generic, unauthenticated rename operations instead of dedicated PHP upload-handling functions allows attackers to bypass upload authentication checks. The introduction of the dedicated RenameUpload filter class enforces safe transfer using PHP's native upload validation.
Insecure Temporary File: Generating temporary upload names using predictable low-entropy identifiers (such as basic uniqid calls) exposes the application to race conditions and file hijacking. Enabling additional entropy and stripping dots mitigates this predictability.