Is CVE-2026-23491 actively exploited?

A proof-of-concept exploit is publicly available for CVE-2026-23491, but active exploitation has not been confirmed.

Can CVE-2026-23491 be exploited remotely?

Yes. CVE-2026-23491 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-23491?

CVE-2026-23491 has a CVSS score of 7.5 (HIGH) and an EPSS exploitation probability of 0.18%.

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HIGHPOC

CVE-2026-23491

CWE-22Published: February 18, 2026· Updated: Feb 25, 2026

7.5

CVSS v3.1

EPSS:0.15%probability of exploitation in 30 daysPercentile:35.1th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-23491 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 7.5.

A proof-of-concept (PoC) exploit exists for CVE-2026-23491. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.