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Plack-0.9920
⭐ Starred 488 / Plack::Middleware::Auth::Basic
Security Advisories (4)
CVE-2026-7381 (2026-04-29)

Plack::Middleware::XSendfile versions through 1.0053 for Perl can allow client-controlled path rewriting. Plack::Middleware::XSendfile allows the variation setting (sendfile type) to be set by the client via the X-Sendfile-Type header, if it is not considered in the middleware constructor or the Plack environment. A malicious client can set the X-Sendfile-Type header to "X-Accel-Redirect" to services running behind nginx reverse proxies, and then set the X-Accel-Mapping to map the path to an arbitrary file on the server. Since 1.0053, Plack::Middleware::XSendfile is deprecated and will be removed from future releases of Plack. This is similar to CVE-2025-61780 for Rack::Sendfile, although Plack::Middleware::XSendfile has some mitigations that disallow regular expressions to be used in the mapping, and only apply the mapping for the "X-Accel-Redirect" type.

CPANSA-Plack-2015-0202 (2015-02-02)

Fixed a possible directory traversal with Plack::App::File on Win32.

CPANSA-Plack-2014-0801 (2014-08-01)

Plack::App::File would previously strip trailing slashes off provided paths. This in combination with the common pattern of serving files with Plack::Middleware::Static could allow an attacker to bypass a whitelist of generated files

CPANSA-Plack-2013-0131 (2013-01-31)

Fixed directory traversal bug in Plack::App::File on win32 environments

NAME

Plack::Middleware::Auth::Basic - Simple basic authentication middleware

SYNOPSIS

use Plack::Builder;
my $app = sub { ... };

builder {
    enable "Auth::Basic", authenticator => \&authen_cb;
    $app;
};

sub authen_cb {
    my($username, $password) = @_;
    return $username eq 'admin' && $password eq 's3cr3t';
}

DESCRIPTION

Plack::Middleware::Auth::Basic is a basic authentication handler for Plack.

CONFIGURATION

authenticator

A callback function that takes username and password supplied and returns whether the authentication succeeds. Required.

Authenticator can also be an object that responds to authenticate method that takes username and password and returns boolean, so backends for Authen::Simple is perfect to use:

use Authen::Simple::LDAP;
enable "Auth::Basic", authenticator => Authen::Simple::LDAP->new(...);
realm

Realm name to display in the basic authentication dialog. Defaults to restricted area.

AUTHOR

Tatsuhiko Miyagawa

SEE ALSO

Plack