{"apiVersion":"1.0","identifier":"CVE-2026-35445","description":"Winter CMS is a content management system built on the Laravel PHP framework. In versions prior to 1.2.13, the backend did not validate the handler name submitted through the form postback _handler POST field, allowing an authenticated backend user to invoke arbitrary controller methods, including protected, private, and action-prefixed ones. While AJAX requests validate that handler names match the on[A-Z][\\w+]* pattern, the postback path passed the submitted _handler value straight to the handler dispatcher with no such check, so any controller that exposes a public action or conditionally relaxes its $requiredPermissions check could be reached, bypassing the roles and permissions system. The built-in Users controller was affected because it set $requiredPermissions to null for the myaccount action, letting any authenticated backend user invoke user-management methods such as update_onDelete and update_onManualPasswordReset without holding the backend.manage_users permission. This issue is fixed in version 1.2.13.","publishedAt":"2026-08-26T17:16:56","lastModifiedAt":"2026-08-26T20:17:21","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-35445","cvssScore":7.1,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/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","epssProbability":0.00253,"riskScore":0.73,"affectedProduct":"Winter CMS","affectedVersions":"<1.2.13","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-35445","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-35445","en":"https://www.redsauce.net/en/cves/CVE-2026-35445","fr":"https://www.redsauce.net/fr/cves/CVE-2026-35445","pt":"https://www.redsauce.net/pt/cves/CVE-2026-35445","de":"https://www.redsauce.net/de/cves/CVE-2026-35445","sk":"https://www.redsauce.net/sk/cves/CVE-2026-35445","el":"https://www.redsauce.net/el/cves/CVE-2026-35445"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-35445"}}