Vulnerability in Joplin (CVE-2018-1000534)

Summary

Vulnerability in Joplin (CVE-2018-1000534). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 1.0.90 or later.

Original description

The description as published by the source.

Joplin version prior to 1.0.90 contains a XSS evolving into code execution due to enabled nodeIntegration for that particular BrowserWindow instance where XSS was identified from vulnerability in Note content field - information on the fix can be found here https://github.com/laurent22/joplin/commit/494e235e18659574f836f84fcf9f4d4fcdcfcf89 that can result in executing unauthorized code within the rights in which the application is running. This attack appear to be exploitable via Victim synchronizing notes from the cloud services or other note-keeping services which contain malicious code. This vulnerability appears to have been fixed in 1.0.90 and later.

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

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-2018-1000534 has been found in Joplin.
Risk of unauthorized operations or information disclosure.
What to do: upgrade Joplin to 1.0.90 or later.
If unsure, ask your IT team or search "Joplin CVE-2018-1000534" on the vendor's site.

CVE-2018-1000534 (Joplin)
Attack vector: remote (network-reachable) / unauthenticated
Patched: 1.0.90 — 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 (unclassified) exists in Joplin.

📍 Affected scope

Check the vendor advisory for the affected versions of Joplin.

🔥 Severity

Severity: ?. Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to 1.0.90.

🛡️ 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 'Joplin' . 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 exposure identify
```
grep -r 'Joplin' . | 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 Joplin 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 patch patch
```
Upgrade Joplin to 1.0.90
```
ステージング環境で 1.0.90 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 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

patch github.com
report github.com