Craft CMS prior 4.17.0-beta.1/5.9.0-beta.1 authorization

CVSS Meta Temp Score
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Craft CMS. This affects an unknown function. This manipulation causes authorization. This vulnerability appears as CVE-2026-28782. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Craft CMS and classified as problematic. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. As an impact it is known to affect integrity. The summary by CVE is:

Craft is a content management system (CMS). Prior to 5.9.0-beta.1 and 4.17.0-beta.1, the "Duplicate" entry action does not properly verify if the user has permission to perform this action on the specific target elements. Even with only "View Entries" permission (where the "Duplicate" action is restricted in the UI), a user can bypass this restriction by sending a direct request. Furthermore, this vulnerability allows duplicating other users' entries by specifying their Entry IDs. Since Entry IDs are incremental, an attacker can trivially brute-force these IDs to duplicate and access restricted content across the system. This vulnerability is fixed in 5.9.0-beta.1 and 4.17.0-beta.1.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-28782 since 03/03/2026. The exploitation appears to be easy. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 4.17.0-beta.1 or 5.9.0-beta.1 eliminates this vulnerability. Applying the patch fb61a91357f5761c852400185ba931f51d82783d is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-639 / CWE-285 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: CMS 4.17.0-beta.1/5.9.0-beta.1
Patch: fb61a91357f5761c852400185ba931f51d82783d

Timelineinfo

03/03/2026 CVE reserved
03/04/2026 +1 days Advisory disclosed
03/04/2026 +0 days VulDB entry created
03/06/2026 +2 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-jxm3-pmm2-9gf6
Status: Confirmed

CVE: CVE-2026-28782 (🔒)
GCVE (CVE): GCVE-0-2026-28782
GCVE (VulDB): GCVE-100-348763

Entryinfo

Created: 03/04/2026 18:36
Updated: 03/06/2026 09:44
Changes: 03/04/2026 18:36 (68), 03/06/2026 09:44 (10)
Complete: 🔍
Cache ID: 216::103

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