Vulnerability · Published Apr 18, 2026 · Assigned by GitHub_M

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

High 8.8

In plain English

A high-severity missing authorization in movary from leepeuker. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).

Severity (CVSS 3.1)8.8High

Exploit odds (30 days)0.5%top 55.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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 (as reported)

Vendor	Product	Versions
leepeuker	movary	< 0.71.1

Weakness: CWE-862 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

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