VulnerabilityAnalyzed

CVE-2026-32263

This allows injecting Yii2 behavior/event handlers via "as" or "on" prefixed keys, the same attack vector as the original advisory.

HIGH 8.6EPSS 0.50%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Craft CMS is a content management system (CMS). From version 5.6.0 to before version 5.9.11, in src/controllers/EntryTypesController.php, the $settings array from parse_str is passed directly to Craft::configure() without Component::cleanseConfig(). This allows injecting Yii2 behavior/event handlers via "as" or "on" prefixed keys, the same attack vector as the original advisory. Craft control panel administrator permissions and allowAdminChanges must be enabled for this to work. This issue has been patched in version 5.9.11.

CVSS 4.0: 8.6 HIGHCVSS:4.0/AV:N/AC:L/AT:N/PR:H/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/M
EPSS: 0.50% probability · 41th percentile
CISA KEV: Not listed
Weakness: CWE-470
Affected: craftcms/craft cms
Source: security-advisories@github.com

References

https://github.com/craftcms/cms/commit/d37389dbffafa565143be40a2ab1e1db22a863f7Patch
https://github.com/craftcms/cms/security/advisories/GHSA-7jx7-3846-m7w7Vendor Advisory
https://github.com/craftcms/cms/security/advisories/GHSA-qx2q-q59v-wf3jPatch, Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.