CVE-2026-86732

    Dashboard / Vulnerabilities / CVE-2026-86732

    CVE-2026-86732

    Published: 8 Sept 2026Last Modified: 12 Sept 2026

    Summary: Craft CMS before 5.10.12 Remote Code Execution via element-index

    Details: 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/CVEProject/cvelistV5/tree/main/cves/2026/86xxx/CVE-2026-86732.json, https://github.com/craftcms/cms/security/advisories/GHSA-9wcj-wqqh-cqvg, https://nvd.nist.gov/vuln/detail/CVE-2026-86732, https://www.vulncheck.com/advisories/craft-cms-before-5.10.12-remote-code-execution-via-element-index

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 04755d93f86d07cc183db47db8a0eee106892e30
    Fixed -4edc686e69515ad42f5608580e351c765b664f80

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-86732 | CVE-DB