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CVE-2026-55381

7.1 · HIGH

InvoiceShelf is an open-source web & mobile app that helps track expenses, payments and create professional invoices and estimates.

Published Oct 14, 2026CWE-639EPSS 0.36%

Overview

CVE-2026-55381 is a high-severity vulnerability. It was published on October 14, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

InvoiceShelf is an open-source web & mobile app that helps track expenses, payments and create professional invoices and estimates. Prior to version 2.4.0, POST /api/v1/estimates/{estimate}/convert-to-invoice in ConvertEstimateController authorizes only the caller's create-invoice ability and does not authorize access to the route-bound Estimate. Because route-model binding can resolve an estimate from any company, an authenticated user with create-invoice ability can copy another company's line items, prices, totals, taxes, notes, currency, and customer data into an invoice in the attacker's company. The victim company's configured conversion action reaches checkForEstimateConvertAction and can also change or delete the original estimate. This issue is fixed in version 2.4.0.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/InvoiceShelf/InvoiceShelf/commit/e432e4e62f5aa52238e3ff3fc37a0c78588eec47GitHubgithub.com/InvoiceShelf/InvoiceShelf/pull/661GitHubgithub.com/InvoiceShelf/InvoiceShelf/releases/tag/2.4.0GitHubgithub.com/InvoiceShelf/InvoiceShelf/security/advisories/GHSA-j2vg-rxqr-5vc9GitHubgithub.com/InvoiceShelf/InvoiceShelf/security/advisories/GHSA-j2vg-rxqr-5vc9

How CyberStrike helps

Frequently asked questions

What is CVE-2026-55381?

CVE-2026-55381 is a high-severity vulnerability. It was published on October 14, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2026-55381?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-55381?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-55381?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-55381 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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