What’s Vulnerable › Vulnerabilities

CVE-2026-40349: Authenticated Movary User Can Self-Escalate to Administrator via PUT /settings/users/{userId} by Setting isAdmin=true

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-18 · updated 2026-10-26
• Weakness: CWE-862

Description

Movary is a self hosted web app to track and rate a user's watched movies. Prior to version 0.71.1, an ordinary authenticated user can escalate their own account to administrator by sending `isAdmin=true` to `PUT /settings/users/{userId}` for their own user ID. The endpoint is intended to let a user edit their own profile, but it updates the sensitive `isAdmin` field without any admin-only authorization check. Version 0.71.1 patches the issue.

Affected products

• leepeuker movary: before 0.71.1 — fixed in 0.71.1

How to fix

Upgrade to a fixed version: leepeuker movary 0.71.1. Check the vendor advisory for mitigations.

References

• https://github.com/leepeuker/movary/commit/12c8a090051b1a1c07a3aa48922f3bc9ffe44c8b
• https://github.com/leepeuker/movary/pull/750
• https://github.com/leepeuker/movary/releases/tag/0.71.1
• https://github.com/leepeuker/movary/security/advisories/GHSA-mcfq-8rx7-w25v

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