CVE-2026-61608: SolidInvoice's user invitation tokens have no expiry, allowing indefinite unauthorized company access via leaked or old invitation links

Severity: medium (CVSS 6.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-04 · updated 2026-09-10
Weakness: CWE-613

Description

SolidInvoice is an open-source invoicing platform. Prior to version 3.0.1, `UserInvitation` entities have no expiry timestamp. Invitation links mailed to users remain valid indefinitely, meaning a leaked, forwarded, or archived invitation email can be used at any time in the future to join a company or silently add a compromised email account to a company. Version 3.0.1 fixes the issue.

Affected products

SolidInvoice: before 3.0.1

References

https://github.com/SolidInvoice/SolidInvoice/releases/tag/3.0.1
https://github.com/SolidInvoice/SolidInvoice/security/advisories/GHSA-5gcp-fm29-jgrp

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