Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

nette/utils

              master @ d179860
            

Fixes

CVEs

CRITICAL

Peak severity

0.0%

Coverage

Highlights

Auth Bypass: 1 prior fix. Scrutinize any change in this area.

src/Utils/Validators.php: most-fixed (2 issues). Treat as high-risk during review.

1 high-severity fix in this history; regressions here are high-impact.

Recurring patterns

The bug types that recur here, drawn from past fixes, not open vulnerabilities.

Auth Bypass: A value-overwriting flaw in Validators::is allowed input values to be replaced by their string lengths, causing subsequent validation rules in a series of alternatives to validate the length instead of the actual data, potentially bypassing authentication or authorization checks.

Input Validation: The use of the '$' regex anchor instead of '\z' allowed input validation bypasses by permitting trailing newlines in validated strings.

Reflected XSS: An attribute trailing space injection and lack of IE8-specific backtick filtering allowed mutation XSS (mXSS) where parsed innerHTML dropped quotes, enabling arbitrary script execution.