← Back
GHSA-mpmw-f6h6-3g26

Vulnerability in winter/wn-backend-module (GHSA-mpmw-f6h6-3g26)

Summary

vulnerability in winter/wn-backend-module (GHSA-mpmw-f6h6-3g26). Risk of unauthorized operations or information disclosure. Exploitable via `GET /backend/backend/myaccount/preview/{other_user_id}`. Mitigation: upgrade to `1.2.14` or later.

AI summary snake-internal / snake-material-v2

A vulnerability tracked as **GHSA-mpmw-f6h6-3g26** has been found in winter/wn-backend-module. Attackers can target a specific entry point like `GET /backend/backend/myaccount/preview/{other_user_id}` over the network to misuse the product. Risk of unauthorized operations or information disclosure. CVSS score: ?/10. What to do: upgrade winter/wn-backend-module to **1.2.14** or later. If unsure, ask your IT team or search "winter/wn-backend-module GHSA-mpmw-f6h6-3g26" on the vendor's site.
GHSA-mpmw-f6h6-3g26 (winter/wn-backend-module) — CWE-639 / Attack surface: GET /backend/backend/myaccount/preview/{other_user_id} / `FormController` / `create` / `update` Patched: `1.2.14` — 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
**A vulnerability** (CWE-639) exists in winter/wn-backend-module. Attackers reach the vulnerable code path via `GET /backend/backend/myaccount/preview/{other_user_id}` without authentication.
📍 Affected scope
winter/wn-backend-module — . Attack surface: GET /backend/backend/myaccount/preview/{other_user_id} / `FormController` / `create` / `update`.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **1.2.14**.
🛡️ 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 `GET /backend/backend/myaccount/preview/{other_user_id}` requests with malformed payloads or SQL meta-characters. Run `grep -r 'winter/wn-backend-module' .` 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

  1. 1
    Identify exposure identify
    grep -r 'winter/wn-backend-module' . | 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 `winter/wn-backend-module` を grep し、稼働しているサービス・バージョンを把握する。

  2. 3
    Hunt for indicators of compromise detect
    grep 'GET /backend/backend/myaccount/preview/{other_user_id}' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'

    アクセスログで `GET /backend/backend/myaccount/preview/{other_user_id}` への異常なリクエスト (不正な認証ヘッダ・SQLメタ文字)を過去 30〜90日分捜索。WAF/SIEM があれば該当パスのアラート発火履歴を確認。

  3. 6
    Apply patch patch
    Upgrade winter/wn-backend-module to 1.2.14

    ステージング環境で 1.2.14 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。

  4. 7
    Post-deployment verification verify
    Replay attack against GET /backend/backend/myaccount/preview/{other_user_id} on staging to confirm patch closes the vector

    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

composer winter/wn-backend-module
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.14"}]}]

References

🍪 About cookies

We use cookies to keep you logged in, remember your language, and improve the service.

Details →