CVE-2026-84795Network attack vector

Administrator access via inherited deactivated-account flag

Published Sep 2, 2026 · Updated Sep 2, 2026

Improper privilege management in Craft CMS before 5.10.11 allows remote attackers to gain administrator access through public registration. User::afterSave() unconditionally copies a retained admin flag when registration reuses a deactivated administrator's user record. Exploitation requires public registration and disabled email verification and grants full control-panel access.

CVSS severity9.2
Critical
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper privilege management in Craft CMS before 5.10.11 allows remote attackers to gain administrator access through public registration. User::afterSave() unconditionally copies a retained admin flag when registration reuses a deactivated administrator's user record. Exploitation requires public registration and disabled email verification and grants full control-panel access.

The record

CVE
CVE-2026-84795
Published
Sep 2, 2026
Updated
Sep 2, 2026
Vendor
Pixel & Tonic
Product
Craft CMS
Classifications
CWE-269, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 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=5.0.0-RC1 <5.10.11

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Pixel & Tonic · Craft CMSversion=5.0.0-RC1 <5.10.11

Published CVSS scores

9.8VulnCheck CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.2VulnCheck CNACVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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