Authorization Bypass Through User-Controlled Key Affecting craftcms/cms package, versions >=4.0.0-RC1, <4.17.0-beta.1>=5.0.0-RC1, <5.9.0-beta.1
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published10 Mar 2026
- disclosed3 Mar 2026
- creditHesham
Introduced: 3 Mar 2026
NewCVE-2026-28782 (opens in a new tab)How to fix?
Upgrade craftcms/cms to version 4.17.0-beta.1, 5.9.0-beta.1 or higher.
Overview
craftcms/cms is a content management system.
Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the _duplicateElements function. An attacker can gain unauthorized access and duplicate other users' entries by sending direct requests with specific entry IDs, even when only minimal permissions are granted.