CVE-2026-57518
High · 8.8CVSS
8.8
EPSS
0.7%
Published
Jun 26, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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