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CVE-2025-67202
medium
CVSS 6.1
Cross-Site Scripting (XSS) in sidekiq-cron (CVE-2025-67202)
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.
AI summary snake-internal / snake-material-v2
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.
❓ What is the problem
**Cross-site scripting (XSS)** (CWE-79) exists in sidekiq-cron.
📍 Affected scope
sidekiq-cron — .
🔥 Severity
Severity: Medium (CVSS 6.1/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **2.4.0**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
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 (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
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。
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6Apply patch patch
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と、Step 3 で見つけた異常検知の続報チェックを含めること。
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7Post-deployment verification verify
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 Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
rubygems
sidekiq-cron
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.0"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2025-67202
- package https://github.com/sidekiq-cron/sidekiq-cron
- web https://github.com/sidekiq-cron/sidekiq-cron/issues/569
- web https://github.com/sidekiq-cron/sidekiq-cron/releases/tag/v2.4.0
- web https://github.com/advisories/GHSA-xv9c-mjw8-79gf
- 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