Authentication Bypass in Qexo Open Source Blog Editor
CVE-2026-44828

9.3CRITICAL

Key Information:

Vendor

Qexo

Status
Qexo
Vendor
CVE Published:
12 October 2026

What is CVE-2026-44828?

Qexo, an open-source online editor for static blogs, is prone to an authentication bypass vulnerability. Versions 4.0.0 through 4.2.0 allow unauthenticated users to access sensitive initialization APIs via the /api/init_step/ endpoint. This security flaw enables a malicious entity with a valid CSRF token, obtainable from public site pages, to initiate the setup process and reset the initialization settings, potentially exposing sensitive service credentials and other configuration information in the frontend response. This issue has been addressed in version 4.2.0.

Affected Version(s)

Qexo >= 4.0.0, < 4.2.0

References

https://github.com/Qexo/Qexo/security/advisories/GHSA-qfv...
x_refsource_CONFIRM
https://github.com/Qexo/Qexo/commit/3782750c2d90bf145b88e...
x_refsource_MISC
https://github.com/Qexo/Qexo/releases/tag/4.2.0
x_refsource_MISC

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.