How severe is CVE-2026-25498?

CVE-2026-25498 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-25498 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-25498?

CVE-2026-25498 primarily affects Craftcms Craft Cms. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-25498?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-25498 have an EU (EUVD) identifier?

Yes. CVE-2026-25498 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6844.

When was CVE-2026-25498 published?

CVE-2026-25498 was published on 2026-02-09 and last updated on 2026-06-17.

CVE-2026-25498

CVE-2026-25498 is a high-severity vulnerability in Craftcms Craft Cms with a CVSS 3.x base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-470.

Key facts

Severity: High (CVSS 3.x base score 7.2)
CVSS v4: 8.6
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-6844
Weakness: CWE-470
Affected product: Craftcms Craft Cms
Published: 2026-02-09
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-25498?: 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.
How severe is CVE-2026-25498?: CVE-2026-25498 has a CVSS 3.x base score of 7.2, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-25498 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-25498?: CVE-2026-25498 primarily affects Craftcms Craft Cms. In total, 7 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-25498?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-25498 have an EU (EUVD) identifier?: Yes. CVE-2026-25498 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6844.
When was CVE-2026-25498 published?: CVE-2026-25498 was published on 2026-02-09 and last updated on 2026-06-17.

References

Affected products (7)

cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*
cpe:2.3:a:craftcms:craft_cms:4.0.0:-:*:*:*:*:*:*
cpe:2.3:a:craftcms:craft_cms:4.0.0:rc1:*:*:*:*:*:*
cpe:2.3:a:craftcms:craft_cms:4.0.0:rc2:*:*:*:*:*:*
cpe:2.3:a:craftcms:craft_cms:4.0.0:rc3:*:*:*:*:*:*
cpe:2.3:a:craftcms:craft_cms:5.0.0:-:*:*:*:*:*:*
cpe:2.3:a:craftcms:craft_cms:5.0.0:rc1:*:*:*:*:*:*

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