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CVE-2026-25498

Craftcms Craft CMS remote code execution

7.2 HIGHPublic exploitEPSS 1.33%
  1. Published9 Feb 2026

Description

Craft is a platform for creating digital experiences. In versions 4.0.0-RC1 through 4.16.17 and 5.0.0-RC1 through 5.8.21, a Remote Code Execution (RCE) vulnerability exists in Craft CMS where the assembleLayoutFromPost() function in src/services/Fields.php fails to sanitize user-supplied configuration data before passing it to Craft::createObject(). This allows authenticated administrators to inject malicious Yii2 behavior configurations that execute arbitrary system commands on the server. This vulnerability represents an unpatched variant of the behavior injection vulnerability addressed in CVE-2025-68455, affecting different endpoints through a separate code path. This vulnerability is fixed in 5.8.22.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredHigh
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

Craftcms Craft CMS> 4.0.0 < 4.16.18 · > 5.0.0 < 5.8.22 · 4.0.0 · 5.0.0

Frequently asked

Is CVE-2026-25498 being actively exploited?

CVE-2026-25498 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.33%.

How severe is CVE-2026-25498?

CVE-2026-25498 has a CVSS 3.1 base score of 7.2, rated high. EPSS estimates a 1.33% probability of exploitation.

Which products are affected by CVE-2026-25498?

Affected products include Craftcms Craft CMS.

How do I fix CVE-2026-25498?

Upgrade affected software to a fixed version, for example Craftcms Craft CMS 4.16.18 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-25498 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.