MagicMirrorOrg MagicMirror up to 2.36.x Calendar node_helper.js ADD_CALENDAR handler selfSignedCert server-side request forgery

Summaryinfo

A vulnerability, which was classified as critical, was found in MagicMirrorOrg MagicMirror up to 2.36.x. This impacts the function ADD_CALENDAR handler of the file defaultmodules/calendar/node_helper.js of the component Calendar. Such manipulation of the argument selfSignedCert leads to server-side request forgery. This vulnerability is uniquely identified as CVE-2026-63643. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in MagicMirrorOrg MagicMirror up to 2.36.x. Affected by this issue is the function ADD_CALENDAR handler of the file defaultmodules/calendar/node_helper.js of the component Calendar. The manipulation of the argument selfSignedCert with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality, integrity, and availability. CVE summarizes:

MagicMirror² is an open source modular smart mirror platform. Prior to 2.37.0, the ADD_CALENDAR handler in defaultmodules/calendar/node_helper.js accepts an attacker-controlled URL, authentication data, and selfSignedCert setting through the unauthenticated Socket.IO namespace /calendar. The handler passes these fields to CalendarFetcher, causing a server-side request without SSRF validation and optionally disabling TLS verification. When the response is valid iCal, CALENDAR_EVENTS returns parsed event data to the attacker, allowing internal-service response data to be exfiltrated; other responses still provide a blind request and timing primitive. This issue is fixed in version 2.37.0.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-63643 since 07/17/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 2.37.0 eliminates this vulnerability.

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Productinfo

Vendor

• MagicMirrorOrg

Name

• MagicMirror

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.14
• 2.15
• 2.16
• 2.17
• 2.18
• 2.19
• 2.20
• 2.21
• 2.22
• 2.23
• 2.24
• 2.25
• 2.26
• 2.27
• 2.28
• 2.29
• 2.30
• 2.31
• 2.32
• 2.33
• 2.34
• 2.35
• 2.36

Website

• Product: https://github.com/MagicMirrorOrg/MagicMirror/

CPE 2.3info

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CPE 2.2info

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