CVE-2026-25498
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
craftcms/cmsPackagist | >= 5.0.0-RC1, < 5.8.22 | 5.8.22 |
craftcms/cmsPackagist | >= 4.0.0-RC1, < 4.16.18 | 4.16.18 |
Affected products
9cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*+ 6 more
- cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*range: >4.0.0,<4.16.18
- 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:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
6- github.com/craftcms/cms/commit/395c64f0b80b507be1c862a2ec942eaacb353748nvdPatchWEB
- github.com/craftcms/cms/security/advisories/GHSA-7jx7-3846-m7w7nvdExploitPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-7jx7-3846-m7w7ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-25498ghsaADVISORY
- github.com/craftcms/cms/releases/tag/4.16.18ghsaWEB
- github.com/craftcms/cms/releases/tag/5.8.22nvdRelease NotesWEB
News mentions
0No linked articles in our index yet.