Invoiceplane
CVE-2026-23491
HIGH
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessSend crafted HTTP request to Guest module
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ExploitManipulate filename parameter with path traversal sequences
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ExecutionBypass file access controls
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ImpactRead arbitrary server files
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK
2 techniques across 2 tactics: Discovery, Collection The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | InvoicePlane versions up to and including 1.6.3 with unauthenticated access to the Guest module's Get controller. No authentication required; default deployment exposes the vulnerable |
| Impact | CVSS 7.5 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: None. Exploitation no authentication required. Public exploit/POC available. |
| Exploit ScenarioDerived | An attacker without authentication could exploit this vulnerability to read arbitrary files on the server by manipulating the input filename. |
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Alert meAnalysisAIv1 – Mar 12, 2026
Unauthenticated attackers can read arbitrary files from InvoicePlane servers through path traversal in the Guest controller's file retrieval function, potentially exposing database credentials and other sensitive configuration data. This vulnerability affects InvoicePlane versions up to 1.6.3 and has public exploit code available. Version 1.6.4 resolves the issue.
Earlier versions of this analysis (1)
InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. A path traversal vulnerability exists in the get_file method of the Guest module's Get controller in InvoicePlane up to and including through 1.6.3. [CVSS 7.5 HIGH]
RemediationAI
A vendor patch is available — apply it immediately. Validate and sanitize file path inputs. Use allowlists. Restrict network access to the affected service where possible.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
Classified as CWE-22 (Path Traversal). Affects Invoiceplane. InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. A path traversal vulnerability exists in the get_file method of the Guest module's Get controller in InvoicePlane up to and including through 1.6.3. The vulnerability allows unauthenticated attackers to read arbitrary files on the server by manipulating the input filename. This leads to the disclosure of sensitive information, including configuration files with database credentials. Version
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
3DescriptionGitHub Advisory
InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. A path traversal vulnerability exists in the get_file method of the Guest module's Get controller in InvoicePlane up to and including through 1.6.3. The vulnerability allows unauthenticated attackers to read arbitrary files on the server by manipulating the input filename. This leads to the disclosure of sensitive information, including configuration files with database credentials. Version 1.6.4 fixes the issue.
Executive ViewAI
InvoicePlane installations are exposed to unauthorized file access through a path traversal vulnerability affecting versions up to 1.6.3. Attackers can exploit this to access sensitive files including invoices, client data, and payment information without authentication, creating significant data breach and compliance risks.
Apply vendor patch. If immediate patching is not possible, implement: (1) WAF rules blocking path traversal patterns in the get_file endpoint, (2) network segmentation restricting guest module access to authorized users only, (3) disable guest file download functionality if not business-critical, (4) enable and monitor access logging for all file retrieval requests.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.
Affected Products (CPE)GitHub Advisory
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