Vulnerability details

CVE-2025-68455

craftcms cms

Craft CMS vulnerable to potential authenticated Remote Code Execution via malicious attached Behavior

CVSS 4.0

8.6High

Official description

Craft is a platform for creating digital experiences. Versions 5.0.0-RC1 through 5.8.20 and 4.0.0-RC1 through 4.16.16 are vulnerable to potential authenticated Remote Code Execution via malicious attached Behavior. Note that attackers must have administrator access to the Craft Control Panel for this to work. Users should update to the patched versions (5.8.21 and 4.16.17) to mitigate the issue.

CVSS scores

Score	Version	Source	Vector
8.6High	4.0	CVEProject cvelistV5 (CNA) (GitHub_M)	`CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`

Affected products

Vendor	Product	Versions	Source
craftcms	cms	>= 4.0.0-RC1, < 4.16.17	CVEProject cvelistV5 (CNA)
craftcms	cms	>= 5.0.0-RC1, < 5.8.21	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/craftcms/cms/commit/27f55886098b56c00ddc53b69239c9c9192252c7 x_refsource_MISC
https://github.com/craftcms/cms/commit/6e608a1a5bfb36943f94f584b7548ca542a86fef x_refsource_MISC
https://github.com/craftcms/cms/commit/ec43c497edde0b2bf2e39a119cded2e55f9fe593 x_refsource_MISC
https://github.com/craftcms/cms/blob/5.x/CHANGELOG.md#5821---2025-12-04 x_refsource_MISC
https://github.com/craftcms/cms/security/advisories/GHSA-255j-qw47-wjh5 x_refsource_CONFIRM

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Details

Published: 2026-01-06
Last updated: 2026-01-06
State: Published
Assigner (CNA): GitHub_M

Exploit prediction (EPSS)

0.96%

Probability of exploitation in 30 days

61.8%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: Proof of concept
Technical impact: Total

Weaknesses (CWE)

CWE-470
Use of Externally-Controlled Input to Select Classes or Code ('Unsafe Reflection')