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TI-2026-18924 Aliases CVE-2026-23491

InvoicePlane has Unauthenticated Path Traversal in Guest Controller

Priority HIGH 81CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.04605 91st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed InvoicePlane (InvoicePlane): 1.6.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
InvoicePlaneInvoicePlanebefore 1.6.41.6.4Patch availableCNA
  • InvoicePlane VendorInvoicePlane Affected before 1.6.4 Fixed in 1.6.4 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:invoiceplane:invoiceplane:*:*:*:*:*:*:*:*before 1.6.4VulnerableInvoicePlane
  • cpe:2.3:a:invoiceplane:invoiceplane:*:*:*:*:*:*:*:* Versions before 1.6.4 Vulnerable ·InvoicePlane

Remediation

  • Fix · CNA InvoicePlane (InvoicePlane) Fixed in 1.6.4

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-23491

References

Exploit 1

Patch 1

  • TI-2025-41126 File upload vulnerability in InvoicePlane through 1.6.3 allows authenticated attackers to… CVSS 3.1CRITICAL 9.9
  • TI-2026-19951 InvoicePlane has a Stored Cross-Site Scripting (XSS) issue CVSS 3.1HIGH 7.5
  • TI-2026-19950 InvoicePlane has a Stored Cross-Site Scripting (XSS) issue CVSS 3.1HIGH 7.5
  • TI-2026-19949 InvoicePlane has a Stored Cross-Site Scripting (XSS) issue CVSS 3.1HIGH 7.5
  • TI-2026-19948 InvoicePlane has a Stored Cross-Site Scripting (XSS) issue CVSS 3.1HIGH 7.5
  • TI-2025-41125 Directory traversal vulnerability in InvoicePlane through 1.6.3 allows unauthenticated… CVSS 3.1MEDIUM 5.3
See all 28 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences