Craft CMS vulnerable to potential authenticated Remote Code Execution via Twig SSTI
The advisory, in context
For this to work, users must have administrator access to the Craft Control Panel, and allowAdminChanges must be enabled for this to work, which is against Craft CMS' recommendations for any non-dev environment.
https://craftcms.com/knowledge-base/securing-craft#set-allowAdminChanges-to-false-in-production
Alternatively, a non-administrator account with allowAdminChanges disabled can be used, provided access to the System Messages utility is available.
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.
Users should update to the patched versions (5.8.21 and 4.16.17) to mitigate the issue.
References:
https://github.com/craftcms/cms/commit/d82680f4a05f9576883bb83c3f6243d33ca73ebe
https://github.com/craftcms/cms/blob/5.x/CHANGELOG.md#5821---2025-12-04
Affected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
From 5.0.0-RC1 before 5.8.21
Fixed in 5.8.21
142 explicitly affected versions
5.0.0, 5.0.0-RC1, 5.0.1, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0.6, 5.1.0, 5.1.1, 5.1.10, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6, 5.1.7, 5.1.8, 5.1.9, 5.2.0, 5.2.0-beta.1, 5.2.0-beta.2, 5.2.0-beta.3, 5.2.0-beta.4, 5.2.0-beta.5, 5.2.0-beta.6, 5.2.1, 5.2.10, 5.2.2, 5.2.3, 5.2.4, 5.2.4.1, 5.2.5, 5.2.6, 5.2.7, 5.2.8, 5.2.9, 5.3.0, 5.3.0-beta.1, 5.3.0-beta.2, 5.3.0.1, 5.3.0.2, 5.3.0.3, 5.3.1, 5.3.2, 5.3.3, 5.3.4, 5.3.5, 5.3.6, 5.4.0, 5.4.0.1, 5.4.1, 5.4.10, 5.4.10.1, 5.4.2, 5.4.3, 5.4.4, 5.4.5, 5.4.5.1, 5.4.6, 5.4.7, 5.4.7.1, 5.4.8, 5.4.9, 5.5.0, 5.5.0.1, 5.5.1, 5.5.1.1, 5.5.10, 5.5.2, 5.5.3, 5.5.4, 5.5.5, 5.5.6, 5.5.6.1, 5.5.7, 5.5.8, 5.5.9, 5.6.0, 5.6.0.1, 5.6.0.2, 5.6.1, 5.6.10, 5.6.10.1, 5.6.10.2, 5.6.11, 5.6.12, 5.6.13, 5.6.14, 5.6.15, 5.6.16, 5.6.17, 5.6.2, 5.6.3, 5.6.4, 5.6.5, 5.6.5.1, 5.6.6, 5.6.7, 5.6.8, 5.6.9, 5.6.9.1, 5.7.0, 5.7.0-beta.1, 5.7.0-beta.2, 5.7.1, 5.7.1.1, 5.7.10, 5.7.11, 5.7.2, 5.7.3, 5.7.4, 5.7.5, 5.7.6, 5.7.7, 5.7.8, 5.7.8.1, 5.7.8.2, 5.7.9, 5.8.0, 5.8.1, 5.8.10, 5.8.11, 5.8.12, 5.8.13, 5.8.13.1, 5.8.13.2, 5.8.14, 5.8.15, 5.8.16, 5.8.17, 5.8.18, 5.8.19, 5.8.2, 5.8.20, 5.8.3, 5.8.4, 5.8.5, 5.8.6, 5.8.7, 5.8.8, 5.8.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "5.0.0-RC1"
},
{
"fixed": "5.8.21"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.0.0",
"5.0.0-RC1",
"5.0.1",
"5.0.2",
"5.0.3",
"5.0.4",
"5.0.5",
"5.0.6",
"5.1.0",
"5.1.1",
"5.1.10",
"5.1.2",
"5.1.3",
"5.1.4",
"5.1.5",
"5.1.6",
"5.1.7",
"5.1.8",
"5.1.9",
"5.2.0",
"5.2.0-beta.1",
"5.2.0-beta.2",
"5.2.0-beta.3",
"5.2.0-beta.4",
"5.2.0-beta.5",
"5.2.0-beta.6",
"5.2.1",
"5.2.10",
"5.2.2",
"5.2.3",
"5.2.4",
"5.2.4.1",
"5.2.5",
"5.2.6",
"5.2.7",
"5.2.8",
"5.2.9",
"5.3.0",
"5.3.0-beta.1",
"5.3.0-beta.2",
"5.3.0.1",
"5.3.0.2",
"5.3.0.3",
"5.3.1",
"5.3.2",
"5.3.3",
"5.3.4",
"5.3.5",
"5.3.6",
"5.4.0",
"5.4.0.1",
"5.4.1",
"5.4.10",
"5.4.10.1",
"5.4.2",
"5.4.3",
"5.4.4",
"5.4.5",
"5.4.5.1",
"5.4.6",
"5.4.7",
"5.4.7.1",
"5.4.8",
"5.4.9",
"5.5.0",
"5.5.0.1",
"5.5.1",
"5.5.1.1",
"5.5.10",
"5.5.2",
"5.5.3",
"5.5.4",
"5.5.5",
"5.5.6",
"5.5.6.1",
"5.5.7",
"5.5.8",
"5.5.9",
"5.6.0",
"5.6.0.1",
"5.6.0.2",
"5.6.1",
"5.6.10",
"5.6.10.1",
"5.6.10.2",
"5.6.11",
"5.6.12",
"5.6.13",
"5.6.14",
"5.6.15",
"5.6.16",
"5.6.17",
"5.6.2",
"5.6.3",
"5.6.4",
"5.6.5",
"5.6.5.1",
"5.6.6",
"5.6.7",
"5.6.8",
"5.6.9",
"5.6.9.1",
"5.7.0",
"5.7.0-beta.1",
"5.7.0-beta.2",
"5.7.1",
"5.7.1.1",
"5.7.10",
"5.7.11",
"5.7.2",
"5.7.3",
"5.7.4",
"5.7.5",
"5.7.6",
"5.7.7",
"5.7.8",
"5.7.8.1",
"5.7.8.2",
"5.7.9",
"5.8.0",
"5.8.1",
"5.8.10",
"5.8.11",
"5.8.12",
"5.8.13",
"5.8.13.1",
"5.8.13.2",
"5.8.14",
"5.8.15",
"5.8.16",
"5.8.17",
"5.8.18",
"5.8.19",
"5.8.2",
"5.8.20",
"5.8.3",
"5.8.4",
"5.8.5",
"5.8.6",
"5.8.7",
"5.8.8",
"5.8.9"
]
}From 4.0.0-RC1 before 4.16.17
Fixed in 4.16.17
226 explicitly affected versions
4.0.0, 4.0.0-RC1, 4.0.0-RC2, 4.0.0-RC3, 4.0.0.1, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.5, 4.0.5.1, 4.0.5.2, 4.0.6, 4.1.0, 4.1.0.1, 4.1.0.2, 4.1.1, 4.1.2, 4.1.3, 4.1.4, 4.1.4.1, 4.10.0, 4.10.0-beta.1, 4.10.0-beta.2, 4.10.1, 4.10.2, 4.10.3, 4.10.4, 4.10.5, 4.10.6, 4.10.7, 4.10.8, 4.11.0, 4.11.0.1, 4.11.0.2, 4.11.1, 4.11.2, 4.11.3, 4.11.4, 4.11.5, 4.12.0, 4.12.1, 4.12.2, 4.12.3, 4.12.4, 4.12.4.1, 4.12.5, 4.12.6, 4.12.6.1, 4.12.7, 4.12.8, 4.12.9, 4.13.0, 4.13.1, 4.13.1.1, 4.13.10, 4.13.2, 4.13.3, 4.13.4, 4.13.5, 4.13.6, 4.13.7, 4.13.8, 4.13.9, 4.14.0, 4.14.0.1, 4.14.0.2, 4.14.1, 4.14.10, 4.14.11, 4.14.11.1, 4.14.12, 4.14.13, 4.14.14, 4.14.15, 4.14.2, 4.14.3, 4.14.4, 4.14.5, 4.14.6, 4.14.7, 4.14.8, 4.14.8.1, 4.14.9, 4.15.0, 4.15.0-beta.1, 4.15.0-beta.2, 4.15.0.1, 4.15.0.2, 4.15.1, 4.15.2, 4.15.3, 4.15.4, 4.15.5, 4.15.6, 4.15.6.1, 4.15.6.2, 4.15.7, 4.16.0, 4.16.1, 4.16.10, 4.16.11, 4.16.12, 4.16.13, 4.16.14, 4.16.15, 4.16.16, 4.16.2, 4.16.3, 4.16.4, 4.16.5, 4.16.6, 4.16.6.1, 4.16.7, 4.16.8, 4.16.9, 4.16.9.1, 4.2.0, 4.2.0.1, 4.2.0.2, 4.2.1, 4.2.1.1, 4.2.2, 4.2.3, 4.2.4, 4.2.5, 4.2.5.1, 4.2.5.2, 4.2.6, 4.2.7, 4.2.8, 4.3.0, 4.3.1, 4.3.10, 4.3.11, 4.3.2, 4.3.2.1, 4.3.3, 4.3.4, 4.3.5, 4.3.6, 4.3.6.1, 4.3.7, 4.3.7.1, 4.3.8, 4.3.8.1, 4.3.8.2, 4.3.9, 4.4.0, 4.4.0-beta.1, 4.4.0-beta.2, 4.4.0-beta.3, 4.4.0-beta.4, 4.4.0-beta.5, 4.4.0-beta.6, 4.4.0-beta.7, 4.4.1, 4.4.10, 4.4.10.1, 4.4.11, 4.4.12, 4.4.13, 4.4.14, 4.4.15, 4.4.16, 4.4.16.1, 4.4.17, 4.4.2, 4.4.3, 4.4.4, 4.4.5, 4.4.6, 4.4.6.1, 4.4.7, 4.4.7.1, 4.4.8, 4.4.9, 4.5.0, 4.5.0-beta.1, 4.5.0-beta.2, 4.5.1, 4.5.10, 4.5.11, 4.5.11.1, 4.5.12, 4.5.13, 4.5.14, 4.5.15, 4.5.2, 4.5.3, 4.5.4, 4.5.5, 4.5.6, 4.5.6.1, 4.5.7, 4.5.8, 4.5.9, 4.6.0, 4.6.0-RC1, 4.6.1, 4.7.0, 4.7.1, 4.7.2, 4.7.2.1, 4.7.3, 4.7.4, 4.8.0, 4.8.1, 4.8.10, 4.8.11, 4.8.2, 4.8.3, 4.8.4, 4.8.5, 4.8.6, 4.8.7, 4.8.8, 4.8.9, 4.9.0, 4.9.1, 4.9.2, 4.9.3, 4.9.4, 4.9.5, 4.9.6, 4.9.7
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "4.0.0-RC1"
},
{
"fixed": "4.16.17"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.0.0",
"4.0.0-RC1",
"4.0.0-RC2",
"4.0.0-RC3",
"4.0.0.1",
"4.0.1",
"4.0.2",
"4.0.3",
"4.0.4",
"4.0.5",
"4.0.5.1",
"4.0.5.2",
"4.0.6",
"4.1.0",
"4.1.0.1",
"4.1.0.2",
"4.1.1",
"4.1.2",
"4.1.3",
"4.1.4",
"4.1.4.1",
"4.10.0",
"4.10.0-beta.1",
"4.10.0-beta.2",
"4.10.1",
"4.10.2",
"4.10.3",
"4.10.4",
"4.10.5",
"4.10.6",
"4.10.7",
"4.10.8",
"4.11.0",
"4.11.0.1",
"4.11.0.2",
"4.11.1",
"4.11.2",
"4.11.3",
"4.11.4",
"4.11.5",
"4.12.0",
"4.12.1",
"4.12.2",
"4.12.3",
"4.12.4",
"4.12.4.1",
"4.12.5",
"4.12.6",
"4.12.6.1",
"4.12.7",
"4.12.8",
"4.12.9",
"4.13.0",
"4.13.1",
"4.13.1.1",
"4.13.10",
"4.13.2",
"4.13.3",
"4.13.4",
"4.13.5",
"4.13.6",
"4.13.7",
"4.13.8",
"4.13.9",
"4.14.0",
"4.14.0.1",
"4.14.0.2",
"4.14.1",
"4.14.10",
"4.14.11",
"4.14.11.1",
"4.14.12",
"4.14.13",
"4.14.14",
"4.14.15",
"4.14.2",
"4.14.3",
"4.14.4",
"4.14.5",
"4.14.6",
"4.14.7",
"4.14.8",
"4.14.8.1",
"4.14.9",
"4.15.0",
"4.15.0-beta.1",
"4.15.0-beta.2",
"4.15.0.1",
"4.15.0.2",
"4.15.1",
"4.15.2",
"4.15.3",
"4.15.4",
"4.15.5",
"4.15.6",
"4.15.6.1",
"4.15.6.2",
"4.15.7",
"4.16.0",
"4.16.1",
"4.16.10",
"4.16.11",
"4.16.12",
"4.16.13",
"4.16.14",
"4.16.15",
"4.16.16",
"4.16.2",
"4.16.3",
"4.16.4",
"4.16.5",
"4.16.6",
"4.16.6.1",
"4.16.7",
"4.16.8",
"4.16.9",
"4.16.9.1",
"4.2.0",
"4.2.0.1",
"4.2.0.2",
"4.2.1",
"4.2.1.1",
"4.2.2",
"4.2.3",
"4.2.4",
"4.2.5",
"4.2.5.1",
"4.2.5.2",
"4.2.6",
"4.2.7",
"4.2.8",
"4.3.0",
"4.3.1",
"4.3.10",
"4.3.11",
"4.3.2",
"4.3.2.1",
"4.3.3",
"4.3.4",
"4.3.5",
"4.3.6",
"4.3.6.1",
"4.3.7",
"4.3.7.1",
"4.3.8",
"4.3.8.1",
"4.3.8.2",
"4.3.9",
"4.4.0",
"4.4.0-beta.1",
"4.4.0-beta.2",
"4.4.0-beta.3",
"4.4.0-beta.4",
"4.4.0-beta.5",
"4.4.0-beta.6",
"4.4.0-beta.7",
"4.4.1",
"4.4.10",
"4.4.10.1",
"4.4.11",
"4.4.12",
"4.4.13",
"4.4.14",
"4.4.15",
"4.4.16",
"4.4.16.1",
"4.4.17",
"4.4.2",
"4.4.3",
"4.4.4",
"4.4.5",
"4.4.6",
"4.4.6.1",
"4.4.7",
"4.4.7.1",
"4.4.8",
"4.4.9",
"4.5.0",
"4.5.0-beta.1",
"4.5.0-beta.2",
"4.5.1",
"4.5.10",
"4.5.11",
"4.5.11.1",
"4.5.12",
"4.5.13",
"4.5.14",
"4.5.15",
"4.5.2",
"4.5.3",
"4.5.4",
"4.5.5",
"4.5.6",
"4.5.6.1",
"4.5.7",
"4.5.8",
"4.5.9",
"4.6.0",
"4.6.0-RC1",
"4.6.1",
"4.7.0",
"4.7.1",
"4.7.2",
"4.7.2.1",
"4.7.3",
"4.7.4",
"4.8.0",
"4.8.1",
"4.8.10",
"4.8.11",
"4.8.2",
"4.8.3",
"4.8.4",
"4.8.5",
"4.8.6",
"4.8.7",
"4.8.8",
"4.8.9",
"4.9.0",
"4.9.1",
"4.9.2",
"4.9.3",
"4.9.4",
"4.9.5",
"4.9.6",
"4.9.7"
]
}References
- https://github.com/craftcms/cms/security/advisories/GHSA-742x-x762-7383
- https://nvd.nist.gov/vuln/detail/CVE-2025-68454
- https://github.com/craftcms/cms/commit/d82680f4a05f9576883bb83c3f6243d33ca73ebe
- https://github.com/craftcms/cms
- https://github.com/craftcms/cms/blob/5.x/CHANGELOG.md#5821---2025-12-04