HIGHVulnerability
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 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.
Properties
- severity
- HIGH
- score
- 8.8
- cve_id
- CVE-2026-86732
- signal_observed_at
- 2026-09-16T21:37:07+00:00
- vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- published_at
- 2026-09-08T16:18:35.333
- last_modified
- 2026-09-10T14:17:09.963
Related Entities (2)
DESCRIBED_BY (1)
→[Source]NVD
HAS_WEAKNESS (1)
→[Weakness]Improper Control of Generation of Code ('Code Injection')
Explore deeper with Ninja Signal's threat intelligence graph