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Mojolicious-9.42
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/ Mojo::JSON::Pointer
Security Advisories (2)
CVE-2024-58134 (2025-05-03)

Mojolicious versions from 0.999922 for Perl uses a hard coded string, or the application's class name, as a HMAC session secret by default. These predictable default secrets can be exploited to forge session cookies. An attacker who knows or guesses the secret could compute valid HMAC signatures for the session cookie, allowing them to tamper with or hijack another user's session.

CVE-2024-58135 (2025-05-03)

Mojolicious versions from 7.28 for Perl may generate weak HMAC session secrets. When creating a default app with the "mojo generate app" tool, a weak secret is written to the application's configuration file using the insecure rand() function, and used for authenticating and protecting the integrity of the application's sessions. This may allow an attacker to brute force the application's session keys.

NAME

Mojo::JSON::Pointer - JSON Pointers

SYNOPSIS

use Mojo::JSON::Pointer;

my $pointer = Mojo::JSON::Pointer->new({foo => [23, 'bar']});
say $pointer->get('/foo/1');
say 'Contains "/foo".' if $pointer->contains('/foo');

DESCRIPTION

Mojo::JSON::Pointer is an implementation of RFC 6901.

ATTRIBUTES

Mojo::JSON::Pointer implements the following attributes.

data

my $data = $pointer->data;
$pointer = $pointer->data({foo => 'bar'});

Data structure to be processed.

METHODS

Mojo::JSON::Pointer inherits all methods from Mojo::Base and implements the following new ones.

contains

my $bool = $pointer->contains('/foo/1');

Check if "data" contains a value that can be identified with the given JSON Pointer.

# True
Mojo::JSON::Pointer->new('just a string')->contains('');
Mojo::JSON::Pointer->new({'♥' => 'mojolicious'})->contains('/♥');
Mojo::JSON::Pointer->new({foo => 'bar', baz => [4, 5]})->contains('/foo');
Mojo::JSON::Pointer->new({foo => 'bar', baz => [4, 5]})->contains('/baz/1');

# False
Mojo::JSON::Pointer->new({'♥' => 'mojolicious'})->contains('/☃');
Mojo::JSON::Pointer->new({foo => 'bar', baz => [4, 5]})->contains('/bar');
Mojo::JSON::Pointer->new({foo => 'bar', baz => [4, 5]})->contains('/baz/9');

get

my $value = $pointer->get('/foo/bar');

Extract value from "data" identified by the given JSON Pointer.

# "just a string"
Mojo::JSON::Pointer->new('just a string')->get('');

# "mojolicious"
Mojo::JSON::Pointer->new({'♥' => 'mojolicious'})->get('/♥');

# "bar"
Mojo::JSON::Pointer->new({foo => 'bar', baz => [4, 5, 6]})->get('/foo');

# "4"
Mojo::JSON::Pointer->new({foo => 'bar', baz => [4, 5, 6]})->get('/baz/0');

# "6"
Mojo::JSON::Pointer->new({foo => 'bar', baz => [4, 5, 6]})->get('/baz/2');

new

my $pointer = Mojo::JSON::Pointer->new;
my $pointer = Mojo::JSON::Pointer->new({foo => 'bar'});

Build new Mojo::JSON::Pointer object.

SEE ALSO

Mojolicious, Mojolicious::Guides, https://mojolicious.org.