HIGH 8.7 NVD
CVE-2026-86732
Craft CMS versions before 5.10.12 contain a remote code execution vulnerability in the element-index endpoint that allows authenticated content editors to insta
Craft CMS versions before 5.10.12 contain a remote code execution vulnerability in the element-index endpoint that allows authenticated content editors to instantiate arbitrary classes through the criteria parameter. Attackers can inject a malicious class via criteria[withTransforms][0][class] that reaches ImageTransforms::normalizeTransform(), then use a PHP gadget chain with yii\rbac\PhpManager to execute code by pointing itemFile to a request log containing PHP payload in the User-Agent header.
References
- https://github.com/craftcms/cms/security/advisories/GHSA-9wcj-wqqh-cqvg
- https://www.vulncheck.com/advisories/craft-cms-before-5.10.12-remote-code-execution-via-el
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-09-08 via NVD.
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