---
id: "CVE-2026-123490"
page: "https://infrastack.ai/live/CVE-2026-123490"
kind: "vulnerability"
aliases: ["CVE-2026-123490"]
title: "Craft CMS: authenticated users can escalate to administrator"
severity: "high"
cvss: 8.8
epss: null
exploited: false
status: "open"
category: "runtime"
products: []
ecosystems: []
tags: ["craft-cms", "php", "runtime", "self-hosted"]
not_affected_if: ["no-control-panel-users", "version-outside-range"]
published_at: "2026-11-06T15:17:18+00:00"
first_seen_at: "2026-11-06T15:42:44+00:00"
updated_at: "2026-11-06T15:44:02+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-123490", "first_seen_at": "2026-11-06T15:42:44+00:00"}]
exploit_sources: []
---

# Craft CMS: authenticated users can escalate to administrator

Link for people: https://infrastack.ai/live/CVE-2026-123490 (this .md is for agents)

Craft CMS versions from 5.8.17 before 5.11.2 let logged-in control panel users pass crafted criteria to getOwners(), which runs attacker-chosen static PHP callables. An attacker can use this to promote every account, including their own, to administrator.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Craft CMS version in `composer.lock` or by running `php craft version`
- Confirm whether the version is between `5.8.17` and `5.11.2`
- Review which accounts have control panel access

## Fix

- Craft CMS: move to `5.11.2` or later

## Timeline

- 2026-11-06T15:42:44+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-123490

## Documents

- [advisory] Vendor advisory: github.com https://github.com/craftcms/cms/security/advisories/GHSA-r56r-f696-c8w9
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/craft-cms-before-5.11.2-privilege-escalation-via-getowners-sandbox-bypass

## From the sources

Craft CMS from 5.8.17 before 5.11.2 contains a privilege escalation vulnerability because getOwners() applies caller criteria without cleansing the query configuration. Authenticated control panel users can invoke attacker-selected static PHP callables via crafted criteria to promote every account to administrator.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_