perl-security

Perl taint mode marks external input as unsafe until explicitly untainted. Enable it using the -T flag, ensuring user-supplied data is validated and sanitized via regex capturing before being used in file or process operations.

Prevent SQL injection in Perl DBI by using parameterized queries with placeholders instead of string interpolation. This separates code from data, ensuring user input is treated strictly as values rather than executable SQL commands.

Yes, it provides security-focused coding guidelines for Perl web frameworks including Mojolicious, Catalyst, Dancer2, and CGI. The guidance covers XSS and CSRF protection, secure session handling, and safe input processing.

Protect against path traversal in Perl file operations by implementing strict input validation and untainting patterns. Ensure file paths are validated against an allowlist and sanitized before executing any file system operations.

Perl taint mode flags variables as insecure when they receive data from external sources like user input or environment variables. The data remains tainted until you explicitly untaint it using a validated regex extraction pattern.

Security tooling for Perl applications includes static analysis scanners and taint-mode enforcement to detect vulnerabilities. Combined with parameterized DBI queries and allowlist validation, these tools help prevent common web vulnerabilities.