CVE Catalog

CVE-2026-86732

HighCVSS 8.8
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.51%

42th percentile - higher than 42% of all known CVEs

Summary

Craft CMS before 5.10.12 has a remote code execution vulnerability in the element-index endpoint allowing authenticated content editors to instantiate arbitrary classes via the criteria parameter. Attackers can inject a malicious class via criteria[withTransforms][0][class] reaching 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.

Risk Assessment

An authenticated content editor can execute arbitrary code on the server, potentially leading to full application takeover and data breach.

Recommendation

Update Craft CMS to 5.10.12 or later and restrict content editor privileges.

Other vulnerabilities in Craft CMS

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Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS