CVE-2026-61614: SolidInvoice's long-lived API tokens accepted as URL query parameters, exposing credentials in server logs and browser history

Severity: medium (CVSS 5.9 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% 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-598

Description

SolidInvoice is an open-source invoicing platform. Prior to version 3.0.1, the REST API authenticator accepts bearer tokens via a `?token=` URL query parameter as a fallback to the `X-API-TOKEN` header. This causes long-lived API credentials to be recorded in server access logs, proxy logs, browser history, and HTTP Referer headers sent to third-party origins. 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-mp4c-675j-mv67

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