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5.3
CVE-2026-4548: Next.js SaaS Starter Has Authorization Issue With User Roles
CVE-2026-4548 · published 7 months ago
Summary
A bug in the Next.js SaaS Starter software allows an attacker to improperly update user roles, which could lead to unauthorized access to sensitive areas of the application. This issue can be exploited remotely, making it a concern for online businesses that use this software. To protect your application, update to a patched version of Next.js SaaS Starter as soon as possible.
Original advisory text
A vulnerability was detected in mickasmt next-saas-stripe-starter 1.0.0. Affected by this vulnerability is the function updateUserrole of the file actions/update-user-role.ts. The manipulation of t...
A vulnerability was detected in mickasmt next-saas-stripe-starter 1.0.0. Affected by this vulnerability is the function updateUserrole of the file actions/update-user-role.ts. The manipulation of the argument userId/role results in improper authorization. The attack may be launched remotely.
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker partial control
Type
CWE-266Incorrect Privilege Assignment
CWE-285Improper Authorization
Timeline
Published22 Mar 2026
Updated29 Oct 2026
First seen22 Mar 2026
Sources
CVE-2026-4548 · NVD
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