Authorization Flaw in InvoicePlane (CVE-2026-88003)
Summary
Vulnerability in InvoicePlane (CVE-2026-88003). Risk of unauthorized operations or information disclosure. Mitigation: upgrade to 1.7.2 or later.
Original description
The description as published by the source.
InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. Prior to 1.7.2, InvoicePlane fails to revoke administrative privileges after a role downgrade because Admin_Controller trusts the user_type snapshot stored in an existing session instead of revalidating ip_users.user_type. When one administrator downgrades another account, the target's active session continues to authorize administrative requests. The downgraded user can use Users::form() to set user_type back to 1, restoring the database role and making the privilege escalation persistent. This vulnerability is fixed in 1.7.2.
Source: NIST National Vulnerability Database NVD
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-2026-88003 has been found in InvoicePlane.
Risk of unauthorized operations or information disclosure.
What to do: upgrade InvoicePlane to 1.7.2 or later.
If unsure, ask your IT team or search "InvoicePlane CVE-2026-88003" on the vendor's site.
CVE-2026-88003 (InvoicePlane) — CWE-863
Patched: 1.7.2 — 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.
Incorrect authorization (CWE-863) exists in InvoicePlane.
Check the vendor advisory for the affected versions of InvoicePlane.
Severity: ?. Risk of unauthorized operations or information disclosure.
Update to 1.7.2.
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 'InvoicePlane' . 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
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1Identify exposure identify
grep -r 'InvoicePlane' . | 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
InvoicePlaneを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade InvoicePlane to 1.7.2ステージング環境で 1.7.2 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。
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3Post-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。