Cross-Site Scripting (XSS) in sidekiq-cron
Summary
Cross-site scripting in sidekiq-cron (CVE-2025-67202). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 2.4.0 or later.
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2025-67202 has been found in sidekiq-cron.
Risk of unauthorized operations or information disclosure. CVSS score: 6.1/10.
What to do: upgrade sidekiq-cron to 2.4.0 or later.
If unsure, ask your IT team or search "sidekiq-cron CVE-2025-67202" on the vendor's site.
CVE-2025-67202 (sidekiq-cron) — CWE-79 / CVSS v3 6.1
Attack vector: remote (network-reachable) / unauthenticated
Patched: 2.4.0 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Cross-site scripting (XSS) (CWE-79) exists in sidekiq-cron.
Check the vendor advisory for the affected versions of sidekiq-cron.
Severity: Medium (CVSS 6.1/10). Risk of unauthorized operations or information disclosure.
Update to 2.4.0.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'sidekiq-cron' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1
Identify exposureidentify
grep -r 'sidekiq-cron' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
sidekiq-cronを grep し、稼働しているサービス・バージョンを把握する。 -
2
Apply patchpatch
Upgrade sidekiq-cron to 2.4.0ステージング環境で 2.4.0 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3
Post-deployment verificationverify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
| Ecosystem | Package | Affected | Fixed |
|---|---|---|---|
| rubygems | sidekiq-cron |
< 2.4.0 |
2.4.0 |
Original description The description as published by the source.
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.
Source: NIST National Vulnerability Database NVD GitHub Advisory
References
- advisory nvd.nist.gov
- advisory github.com
- package github.com
- report github.com
- web github.com
- web github.com
- web github.com
- web github.com
- web github.com