MEDIUM6.1

GHSA-xv9c-mjw8-79gf

Sidekiq-cron is vulnerable to a cross-site scripting (xss) vulnerability via crafted URL

Quick fix

GHSA-xv9c-mjw8-79gf — sidekiq-cron: upgrade to the fixed version with the command below.

bundle update sidekiq-cron

Details

Sidekiq-cron thru 2.3.1, an open-source scheduling add-on for Sidekiq, is vulnerable to a cross-site scripting (xss) vulnerability via crafted URL being rended from cron.erb.

Are you affected?

Enter the version of the package you're using.

Affected packages

RubyGems/sidekiq-cron

Introduced in: 0Fixed in: 2.4.0

Fixbundle update sidekiq-cron

References

https://nvd.nist.gov/vuln/detail/CVE-2025-67202[ADVISORY]
https://github.com/sidekiq-cron/sidekiq-cron/issues/569[WEB]
https://github.com/sidekiq-cron/sidekiq-cron/pull/568[WEB]
https://github.com/sidekiq-cron/sidekiq-cron/commit/7b4ae4822f93ef4646f5cb55500ca4e25662db7c[WEB]
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/sidekiq-cron/CVE-2025-67202.yml[WEB]
https://github.com/sidekiq-cron/sidekiq-cron[PACKAGE]
https://github.com/sidekiq-cron/sidekiq-cron/releases/tag/v2.4.0[WEB]