Highlights
Auth Bypass: 26 prior fixes. Scrutinize any change in this area.
app/controllers/signup_controller.rb: most-fixed (3 issues). Treat as high-risk during review.
23 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.
SQL Injection: Direct string interpolation of untrusted HTTP query parameters into ActiveRecord where clauses allowed arbitrary SQL execution.
Auth Bypass: Accessing and modifying sensitive transaction records via guessable, plain sequential or public external identifiers rather than cryptographically signed and scoped tokens.
Command Injection: Untrusted document names or page parameters were interpolated directly into shell execution utilities like Subexec, allowing command execution on the host system.