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Craft CMS CVE-2026-14794

| EUVDEUVD-2026-41805 MEDIUM
Improper Authorization (CWE-285)
2026-07-06 VulDB GHSA-rmj4-m9cp-mp9v
Authentication Bypass PHP Cms
5.3
CVSS 4.0 · Vendor: VulDB
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Severity by source

Vendor (VulDB) PRIMARY
5.3 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
4.3 MEDIUM

Network-reachable endpoint requiring low-privilege auth; only confidentiality impact via user stats disclosure; no integrity or availability effect.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

1
Analysis Generated
Jul 06, 2026 - 04:52 vuln.today

DescriptionCVE.org

A flaw has been found in Craft CMS up to 4.18.0.1. Affected by this vulnerability is the function actionGetNewUsersData of the file src/controllers/ChartsController.php of the component Charts Endpoint. This manipulation of the argument userGroupId causes improper authorization. The attack is possible to be carried out remotely. Upgrading to version 4.18.1 addresses this issue. Patch name: 9ee53efc1314e6aba32771c66a13e072a246f4ce. It is suggested to upgrade the affected component.

AnalysisAI

Improper authorization in Craft CMS up to 4.18.0.1 allows authenticated low-privileged users to access new user statistics for arbitrary user groups via the Charts endpoint. The flaw resides in the actionGetNewUsersData function within src/controllers/ChartsController.php, where the userGroupId parameter is not properly validated against the requesting user's authorization scope, enabling horizontal privilege escalation to read data across user group boundaries. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Obtain low-privileged Craft CMS credentials
Delivery
Authenticate and obtain valid session token
Exploit
Send crafted request to Charts endpoint with arbitrary userGroupId
Execution
Bypass authorization check in actionGetNewUsersData
Impact
Receive new users statistics for unauthorized user group
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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid authenticated session in the target Craft CMS instance with at least low-privileged access (PR:L per CVSS 4.0 vector). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N) scores 5.3, reflecting a medium-severity, network-accessible flaw requiring low privileges with no attack complexity or special conditions beyond authentication. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker with a low-privileged Craft CMS account - such as an editor or contributor - crafts an authenticated HTTP GET or POST request to the Charts endpoint, supplying an arbitrary `userGroupId` value corresponding to a user group they do not administer. The endpoint returns new user registration statistics for that group without enforcing authorization, allowing the attacker to enumerate membership growth across all user groups. …
Remediation Upgrade Craft CMS to version 4.18.1 or later, which contains the fix introduced in commit `9ee53efc1314e6aba32771c66a13e072a246f4ce`. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-14794 vulnerability details – vuln.today
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