Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-63100 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

Maybe through 0.6.0 contains a missing authorization vulnerability that allows authenticated low-privilege member-role users to access and modify global hosting settings by exploiting unprotected show and update actions in the Settings::HostingsController, where the before_action ensure_admin filter is applied only to the clear_cache action. Attackers can read the operator's Synth API key rendered in plaintext via a form field value attribute, overwrite it with an attacker-controlled value, toggle public registration settings, and disable email confirmation requirements to disrupt the entire instance.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://github.com/geo-chen/oss/blob/main/maybe.md	[email protected]	ExploitTechnical Analysis
https://www.vulncheck.com/advisories/maybe-missing-authorization-via-hostingscontroller-show-update	[email protected]	Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-862	Missing Authorization	[email protected]

Affected Products

Product	Versions
Maybe	<= 0.6.0 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation No remediation found in references.

Change History

2 change records found show changes

Date	Action	Recorded By
Jul 21, 2026	CVE Modified	CISA-ADP
Jul 17, 2026	New CVE Received	[email protected]