Security Advisories (3)
Mojo::DOM did not correctly parse <script> tags.
Mojolicious versions from 0.999922 for Perl uses a hard coded string, or the application's class name, as an HMAC session cookie secret by default. These predictable default secrets can be exploited by an attacker 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.
- https://github.com/mojolicious/mojo/pull/1791
- https://github.com/mojolicious/mojo/pull/2200
- https://www.synacktiv.com/publications/baking-mojolicious-cookies
- https://medium.com/securing/baking-mojolicious-cookies-revisited-a-case-study-of-solving-security-problems-through-security-by-13da7c225802
- https://metacpan.org/release/SRI/Mojolicious-9.39/source/lib/Mojolicious.pm#L51
- https://github.com/hashcat/hashcat/pull/4090
- https://lists.debian.org/debian-perl/2025/05/msg00016.html
- https://lists.debian.org/debian-perl/2025/05/msg00017.html
- https://lists.debian.org/debian-perl/2025/05/msg00018.html
- https://github.com/mojolicious/mojo/pull/2252
- https://docs.mojolicious.org/Mojolicious/Guides/FAQ#What-does-Your-secret-passphrase-needs-to-be-changed-mean
Mojolicious versions from 7.28 through 9.45 for Perl will generate weak HMAC session cookie secrets via "mojo generate app" by default. When creating a default app skeleton 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. Release 9.46 fixes the issue by providing high quality randomness, even in absence of CryptX. Users should be aware that the update does not replace previously generated weak secrets. A secret generated with the previous version MUST be replaced to ensure the updated version is using a strong secret.
- https://perldoc.perl.org/functions/rand
- https://metacpan.org/release/SRI/Mojolicious-9.39/source/lib/Mojo/Util.pm#L181
- https://metacpan.org/release/SRI/Mojolicious-9.38/source/lib/Mojolicious/Command/Author/generate/app.pm#L202
- https://github.com/mojolicious/mojo/pull/2200
- https://metacpan.org/release/SRI/Mojolicious-7.28/source/lib/Mojolicious/Command/generate/app.pm#L220
- https://security.metacpan.org/docs/guides/random-data-for-security.html
- https://github.com/hashcat/hashcat/pull/4090
- https://lists.debian.org/debian-perl/2025/05/msg00016.html
- https://lists.debian.org/debian-perl/2025/05/msg00017.html
- https://lists.debian.org/debian-perl/2025/05/msg00018.html
- https://metacpan.org/release/SRI/Mojolicious-9.46/source/Changes
- https://github.com/mojolicious/mojo/commit/fb3733f92cc8a3344e6d615b3c7dac9d538eeab0.patch
- https://github.com/mojolicious/mojo/commit/789cfa43f9118852b38cbd1fd0a2596bcb9821ea.patch
NAME
hypnotoad - Hypnotoad HTTP and WebSocket server
SYNOPSIS
Usage: hypnotoad [OPTIONS] [APPLICATION]
hypnotoad ./script/my_app
hypnotoad ./myapp.pl
hypnotoad -f ./myapp.pl
Options:
-f, --foreground Keep manager process in foreground
-h, --help Show this message
-s, --stop Stop server gracefully
-t, --test Test application and exit
DESCRIPTION
Start Mojolicious and Mojolicious::Lite applications with the Hypnotoad web server.
SEE ALSO
Module Install Instructions
To install Mojolicious, copy and paste the appropriate command in to your terminal.
cpanm Mojolicious
perl -MCPAN -e shell
install Mojolicious
For more information on module installation, please visit the detailed CPAN module installation guide.