CVE-2026-32730Public exploitNetwork attack vector

MFA bypass via inverted bearer-token query

Published Mar 18, 2026 · Updated Mar 18, 2026

Authentication bypass in ApostropheCMS 3.0.0 through 4.27.1 allows remote attackers with valid passwords to access accounts without MFA. The getBearer function tests requirementsToVerify with MongoDB's not-equal operator, so nonempty arrays of unfinished requirements match. Exposure requires login-totp or a custom afterPasswordVerified requirement; accepted tokens grant the victim's CMS API access.

CVSS severity8.1
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in ApostropheCMS 3.0.0 through 4.27.1 allows remote attackers with valid passwords to access accounts without MFA. The getBearer function tests requirementsToVerify with MongoDB's not-equal operator, so nonempty arrays of unfinished requirements match. Exposure requires login-totp or a custom afterPasswordVerified requirement; accepted tokens grant the victim's CMS API access.

The record

CVE
CVE-2026-32730
Published
Mar 18, 2026
Updated
Mar 18, 2026
Vendor
ApostropheCMS
Product
ApostropheCMS
Classifications
CWE-287, CWE-305, T1078
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.28.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ApostropheCMS · ApostropheCMSversion=< 4.28.0

Published CVSS scores

8.1GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
CWE-305Authentication Bypass by Primary Weakness
T1078Valid Accounts

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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