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Vulnerability record · CVE-2026-79988 · published 27 August 2026

CVE-2026-79988: The Twig sandbox mechanism in Craft CMS is configured to allow dangerous functionality from the Yii framework,…

The Twig sandbox mechanism in Craft CMS is configured to allow dangerous functionality from the Yii framework, leading to authenticated RCE similar to previously disclosed vulnerabilities.

8.7 CVSS 4.0 High EPSS 0.45% · top 63.3% CWE-693 · CWE-693 Deferred
8.7CVSS 4.0 base score
0.45%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
28 Aug 2026Last modified by NVD

Description

The Twig sandbox mechanism in Craft CMS is configured to allow dangerous functionality from the Yii framework, leading to authenticated RCE similar to previously disclosed vulnerabilities.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/craftcms/cms
https://github.com/craftcms/cms/releases/tag/5.10.7
https://www.hckrt.com/hacktivity/HCKRT-8RQQ7K

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Source: NIST National Vulnerability Database (record CVE-2026-79988), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.