CVE-2026-28782Public exploitNetwork attack vector

Restricted-content access via unchecked entry duplication

Published Mar 4, 2026 · Updated Mar 4, 2026

Authorization bypass in Craft CMS before 4.17.0-beta.1 and before 5.9.0-beta.1 allows remote authenticated users to duplicate restricted entries. The Duplicate::_duplicateElements loop processed request-selected Entry IDs without calling Elements::canDuplicate for the current user. Any account with View Entries permission can submit the direct control-panel action, enumerate incremental Entry IDs, and obtain attacker-owned copies of content that the account cannot otherwise access.

CVSS severity5.3
Medium
EPSS probability0.23%
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 Craft CMS before 4.17.0-beta.1 and before 5.9.0-beta.1 allows remote authenticated users to duplicate restricted entries. The Duplicate::_duplicateElements loop processed request-selected Entry IDs without calling Elements::canDuplicate for the current user. Any account with View Entries permission can submit the direct control-panel action, enumerate incremental Entry IDs, and obtain attacker-owned copies of content that the account cannot otherwise access.

The record

CVE
CVE-2026-28782
Published
Mar 4, 2026
Updated
Mar 4, 2026
Vendor
Pixel & Tonic
Product
Craft CMS
Classifications
CWE-639, T1213
Attack vector
network
Privileges
authenticated

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

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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=>= 4.0.0-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 privilegesauthenticated

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

4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
5.3GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/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 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-639Authorization Bypass Through User-Controlled Key
T1213Data from Information Repositories

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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