apostrophecms apostrophe up to 4.27.x Multi-Factor Authentication improper authentication

Summaryinfo

A vulnerability labeled as critical has been found in apostrophecms apostrophe up to 4.27.x. This affects an unknown function of the component Multi-Factor Authentication. Executing a manipulation can lead to improper authentication. The identification of this vulnerability is CVE-2026-32730. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in apostrophecms apostrophe up to 4.27.x and classified as critical. This vulnerability affects an unknown part of the component Multi-Factor Authentication. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

ApostropheCMS is an open-source content management framework. Prior to version 4.28.0, the bearer token authentication middleware in `@apostrophecms/express/index.js` (lines 386-389) contains an incorrect MongoDB query that allows incomplete login tokens — where the password was verified but TOTP/MFA requirements were NOT — to be used as fully authenticated bearer tokens. This completely bypasses multi-factor authentication for any ApostropheCMS deployment using `@apostrophecms/login-totp` or any custom `afterPasswordVerified` login requirement. Version 4.28.0 fixes the issue.

The advisory is available at github.com. This vulnerability was named CVE-2026-32730 since 03/13/2026. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available.

Upgrading to version 4.28.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-12975). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• apostrophecms

Name

• apostrophe

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7
• 4.8
• 4.9
• 4.10
• 4.11
• 4.12
• 4.13
• 4.14
• 4.15
• 4.16
• 4.17
• 4.18
• 4.19
• 4.20
• 4.21
• 4.22
• 4.23
• 4.24
• 4.25
• 4.26
• 4.27

Website

• Product: https://github.com/apostrophecms/apostrophe/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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