Missing Authorization Affecting craftcms/cms package, versions >=4.0.0-RC1, <4.17.8>=5.0.0-RC1, <5.9.14
Threat Intelligence
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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- published25 Mar 2026
- disclosed24 Mar 2026
- creditBaozongwi'xd
Introduced: 24 Mar 2026
NewCVE-2026-33159 (opens in a new tab)How to fix?
Upgrade craftcms/cms to version 4.17.8, 5.9.14 or higher.
Overview
craftcms/cms is a content management system.
Affected versions of this package are vulnerable to Missing Authorization via the ConfigSyncController process. An attacker can perform unauthorized configuration synchronization operations by sending crafted requests to endpoints such as regenerate-yaml or apply-yaml-changes without authentication, leading to unauthorized state changes and potential compromise of service integrity.