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CVE-2026-55383

8.2 · HIGH

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

Published Oct 14, 2026CWE-285EPSS 0.42%

Overview

CVE-2026-55383 is a high-severity vulnerability. It was published on October 14, 2026 and has a CVSS 3.1 base score of 8.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are 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, InvoiceShelf public customer invoice, estimate, and payment routes use an EmailLog token's numeric mailable_id without verifying mailable_type, and the JSON handlers do not enforce EmailLog::isExpired. A token issued for one document type can therefore disclose a different company's document when numeric identifiers collide, and an expired token can remain usable on the JSON routes GET /customer/invoices/{email_log:token}, GET /customer/estimates/{email_log:token}, and GET /customer/payments/{email_log:token}. View handlers can also mark a mismatched invoice or estimate as viewed and send a notification. 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/5839d8385debf379644f55e773639e1c7e673163GitHubgithub.com/InvoiceShelf/InvoiceShelf/pull/662GitHubgithub.com/InvoiceShelf/InvoiceShelf/releases/tag/2.4.0GitHubgithub.com/InvoiceShelf/InvoiceShelf/security/advisories/GHSA-73q7-2953-8gvxGitHubgithub.com/InvoiceShelf/InvoiceShelf/security/advisories/GHSA-73q7-2953-8gvx

How CyberStrike helps

Frequently asked questions

What is CVE-2026-55383?

CVE-2026-55383 is a high-severity vulnerability. It was published on October 14, 2026 and has a CVSS 3.1 base score of 8.2 (HIGH).

How severe is CVE-2026-55383?

This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-55383?

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-2026-55383?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-55383 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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