CVE-2026-27939Network attack vector

Authenticated privilege escalation via falsey verification values

Published Feb 27, 2026 · Updated Feb 27, 2026

Improper authentication in Statamic CMS 6.0.0 through 6.3.3 allows remote authenticated users to obtain elevated sessions. ElevatedSessionController treats PHP-falsey password, verification-code, or passkey identifier values as absent, then elevates the session without verifying them. Control Panel access is required; the elevated session reaches sensitive functions such as role editing, user management, and two-factor authentication settings.

CVSS severity8.8
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in Statamic CMS 6.0.0 through 6.3.3 allows remote authenticated users to obtain elevated sessions. ElevatedSessionController treats PHP-falsey password, verification-code, or passkey identifier values as absent, then elevates the session without verifying them. Control Panel access is required; the elevated session reaches sensitive functions such as role editing, user management, and two-factor authentication settings.

The record

CVE
CVE-2026-27939
Published
Feb 27, 2026
Updated
Feb 27, 2026
Vendor
Statamic, LLC
Product
Statamic CMS
Classifications
CWE-287, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 27, 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=>= 6.0.0, < 6.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Statamic, LLC · Statamic CMSversion=>= 6.0.0, < 6.4.0

Published CVSS scores

8.8GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

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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