Security Advisories (2)
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 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.
- 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
No POD found for TestConnectProxy.pm.
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Module Install Instructions
To install Mojolicious, copy and paste the appropriate command in to your terminal.
cpanm Mojoliciousperl -MCPAN -e shell
install MojoliciousFor more information on module installation, please visit the detailed CPAN module installation guide.