Highlights
Path Traversal: 8 prior fixes. Scrutinize any change in this area.
Validator.php: most-fixed (6 issues). Treat as high-risk during review.
27 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: 3 historical fix(es) link FileUpload.php, Theme.php, tl_settings.php, tl_templates.php, DC_Folder.php, Controller.php, Files.php, Validator.php to Path Traversal.
Path Traversal: 3 historical fix(es) link Backend.php, tl_templates.php, Validator.php to Path Traversal.
Authorization Bypass: 2 historical fix(es) link src/Resources/contao/classes/Ajax.php to Authorization Bypass.