CVE-2026-57518

Pagekit CMS 1.0.18 contains a privilege escalation vulnerability that allows authenticated users with the 'user: manage users' permission to escalate privileges by assigning arbitrary custom roles to themselves due to missing authorization checks in UserApiController::saveAction(). Attackers can assign themselves a custom role with the 'system: manage packages' permission and then upload and install a malicious PHP package through the admin package installer to achieve remote code execution.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gist.github.com/sermikr0/6f0a67e9d101746fcdb04827de137847
https://www.vulncheck.com/advisories/pagekit-cms-privilege-escalation-via-userapicontroller

Configurations

No configuration.

History

No history.

Information

Published : 2026-06-26 17:16

Updated : 2026-07-14 22:17

NVD link : CVE-2026-57518

Mitre link : CVE-2026-57518

CVE.ORG link : CVE-2026-57518

JSON object : View

Products Affected

No product.

CWE

CWE-862

Missing Authorization

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