Vulnerability in GROWI (CVE-2026-100727)
Summary
Vulnerability in GROWI (CVE-2026-100727). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
An improper access control vulnerability exists in GROWI, which allow an unauthenticated attacker to read files contained in non-public pages of the affected product when the file upload setting is configured as "Local".
Source: JVN (Japan Vulnerability Notes) NVD GitHub Advisory
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-2026-100727 has been found in GROWI.
Risk of unauthorized operations or information disclosure. CVSS score: 5.3/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "GROWI CVE-2026-100727" on the vendor's site.
CVE-2026-100727 (GROWI) — CWE-552 / CVSS v3 5.3
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
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.
A vulnerability (CWE-552) exists in GROWI.
Check the vendor advisory for the affected versions of GROWI.
Severity: Medium (CVSS 5.3/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
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 'GROWI' . 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
-
1Identify exposure identify
grep -r 'GROWI' . | 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
GROWIを grep し、稼働しているサービス・バージョンを把握する。 -
2Post-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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- JVN JVNDB-2026-000144
- web vultures@jpcert.or.jp
- web vultures@jpcert.or.jp
- web nvd.nist.gov
- web jvn.jp
- web github.com