CVE-2026-72781 json
Craft CMS 5.0.0-RC1 before 5.10.7 Remote Code Execution via Twig Sandbox Escape
published 2026-08-06 3 mo ago modified 2026-10-24 16 d ago also EUVD-2026-56105 , GHSA-f5wm-88jv-g5hx
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
Summary
Craft CMS versions >= 5.0.0-RC1 before 5.10.7 and >= 4.0.0-RC1 before 4.18.3 contain a remote code execution vulnerability in the Twig sandbox mechanism. Because Craft marks the ElementInterface as safe (via the AllowedInSandbox attribute) and the sandbox allowlisting extends to the entire class hierarchy (craft\base\Component up to yii\base\Component), an authenticated attacker with permission to access the control panel can render a malicious Twig template that abuses the yii\base\Component arbitrary function-call gadget to execute arbitrary code, even when the Twig sandbox is enabled via enableTwigSandbox().
Patch / fix
- packagist craftcms/cms 4.18.3, 5.10.7
- craftcms cms 4.18.3, 5.10.7
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
0.79% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | 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 |
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 8.7 | 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:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | craftcms/cms | >=5.0.0-RC1, <5.10.7 >=4.0.0-RC1, <4.18.3 |
5.10.7 4.18.3 |
Affected products
- craftcms cms
Classification
- Weakness
-
- CWE-693 Protection Mechanism Failure
References
-
github.com
/craftcms/cms/commit/0b8be1556be4e030578ec779c3e17ffe2e69d7db
web
-
github.com
/craftcms/cms/security/advisories/GHSA-f5wm-88jv-g5hx
vendor-advisory, web
-
vulncheck.com
/advisories/craft-cms-rc1-before-remote-code-execution-via-twig-sandbox-escape
third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2026-72781
advisory
-
github.com
/craftcms/cms
package
-
github.com
/craftcms/cms/releases/tag/4.18.3
web
-
github.com
/craftcms/cms/releases/tag/5.10.7
web
Sources
- CVE List CVE-2026-72781
- GitHub Advisory GHSA-f5wm-88jv-g5hx
- NVD CVE-2026-72781
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.