Improperly Controlled Modification of Dynamically-Determined Object Attributes Affecting craftcms/cms package, versions >=5.7.0, <5.9.21
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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- published2 Jul 2026
- disclosed2 Jul 2026
- creditUnknown
Introduced: 2 Jul 2026
NewCVE-2026-50281 (opens in a new tab)How to fix?
Upgrade craftcms/cms to version 5.9.21 or higher.
Overview
craftcms/cms is a content management system.
Affected versions of this package are vulnerable to Improperly Controlled Modification of Dynamically-Determined Object Attributes via the newAttributes parameter in the bulk duplicate process. An attacker can overwrite existing elements belonging to other users by submitting arbitrary id values, resulting in unauthorized modification of content by predicting or enumerating element IDs. This is only exploitable if the attacker has permission to duplicate at least one entry they own.