SEPTEMBER 17, 2026
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Case File

CVE-2026-86731

MEDIUM · CVSS 6.5 EPSS 0.18% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-08 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

Craft CMS versions 5.0.0-RC1 through 5.10.11 have a vulnerability in the UsersController::actionActivateUser that allows authenticated users with the administrateUsers permission to activate deactivated administrator accounts without proper authorization checks. This oversight can lead to privilege escalation, especially if the attacker subsequently resets the administrator's password. Organizations using affected versions of Craft CMS should prioritize this vulnerability to prevent unauthorized access and potential compromise of administrative accounts.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-86731
Severity
MEDIUM
CVSS
6.5
EPSS
0.18%

Original NVD Description

Craft CMS versions 5.0.0-RC1 through 5.10.11 are missing an admin-target guard in UsersController::actionActivateUser (the users/activate-user action). While the action requires the administrateUsers permission, it does not call requireAdmin() when the targeted user is an administrator, unlike the mirror action actionDeactivateUser. As a result, an authenticated control panel user who is not an administrator but holds the administrateUsers permission can activate a pending or deliberately deactivated administrator account, which can lead to permission escalation when combined with resetting that account's password. The issue is fixed in Craft CMS 5.10.12.