CVE-2026-28784

What it is

Craft is a content management system (CMS). Prior to 5.8.22 and 4.16.18, it is possible to craft a malicious payload using the Twig map filter in text fields that accept Twig input under Settings in the Craft control panel or using the System Messages utility, which could lead to a RCE. For this to work, you must have administrator access to the Craft Control Panel, and allowAdminChanges must be enabled for this to work, which is against our recommendations for any non-dev environment. Alternatively, you can have a non-administrator account with allowAdminChanges disabled, but you have access to the System Messages utility. Users should update to the patched versions (5.8.22 and 4.16.18) to mitigate the issue.

At a glance

Exploitability

Can be exploited over the network with an admin-level account. High risk of data exposure, data tampering, service disruption.

Exploit odds

0.6% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-03-04 17:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 10:29 UTC Last updatedMost recent change to the record

Details

Published

2026-03-04 17:16 UTC

Last modified

2026-06-17 10:29 UTC

Exploit probability

0.6% · EPSS, next 30 days

Weakness

CWE-1336

Record status

Analyzed

Affected

• Craftcms Craft Cms < 4.17.0
• Craftcms Craft Cms < 5.9.0
• Craftcms Craft Cms 4.0.0
• Craftcms Craft Cms 5.0.0

Attack profile CVSS 4.0 · 8.6

Attack vector

Network

Complexity

Low

Attack requirements

None

Privileges needed

High

User interaction

None

Confidentiality

High

Integrity

High

Availability

High