CVE-2026-28696Public exploitNetwork attack vector

Sensitive data disclosure via unchecked GraphQL references

Published Mar 4, 2026 · Updated Mar 4, 2026

Authorization bypass in Pixel & Tonic Craft CMS before 4.17.0-beta.1 or 5.9.0-beta.1 allows remote attackers to read protected element data. Elements::parseRefs resolves an attacker-selected element and reads the named attribute through dynamic property access without applying canView authorization. Authenticated schema access exposes the flaw, while unauthenticated access requires an enabled Public Schema; disclosed data includes user attributes, private fields, and internal paths.

CVSS severity8.7
High
EPSS probability0.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Pixel & Tonic Craft CMS before 4.17.0-beta.1 or 5.9.0-beta.1 allows remote attackers to read protected element data. Elements::parseRefs resolves an attacker-selected element and reads the named attribute through dynamic property access without applying canView authorization. Authenticated schema access exposes the flaw, while unauthenticated access requires an enabled Public Schema; disclosed data includes user attributes, private fields, and internal paths.

The record

CVE
CVE-2026-28696
Published
Mar 4, 2026
Updated
Mar 4, 2026
Vendor
Pixel & Tonic
Product
Craft CMS
Classifications
CWE-639, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=>= 4.0.0-RC1, < 4.17.0-beta.1
  2. Affected versionversion=>= 5.0.0-RC1, < 5.9.0-beta.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Pixel & Tonic · Craft CMSversion=>= 4.0.0-RC1, < 4.17.0-beta.1; version=>= 5.0.0-RC1, < 5.9.0-beta.1

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.7GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

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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