Vulnerability · Published Sep 2, 2026 · Assigned by VulnCheck

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

Medium 6.3

In plain English

A medium-severity missing authorization in cms from craftcms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.3%top 78.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
craftcms	cms	5.0.0-RC1 – before 5.10.11

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

References

GitHub Security Advisory (GHSA-2f55-h4xr-92p2) vendor-advisory
VulnCheck Advisory: Craft CMS 5.0.0-RC1 before 5.10.11 Authorization Bypass via actionDuplicate third-party-advisory