CVE-2026-105785: Joplin Server password reset accepts tokens issued for unrelated purposes

Vulnerability summary

CVE-2026-105785 is a medium (CVSS 4.8) Unverified Password Change vulnerability in laurent22 joplin. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 7.9% of scored vulnerabilities.

Timeline

1. 05-10-2026
   PublishedVulnerability first disclosed.
2. 08-10-2026
   Last modifiedVulnerability information updated.

Description

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to Joplin Server 3.7.2, packages/server/src/models/TokenModel.ts stores CSRF, account-confirmation, email-change, and password-reset tokens without a purpose, and packages/server/src/models/UserModel.ts allows UserModel.resetPassword to accept any token returned by TokenModel.userFromToken. An attacker who obtains a victim's CSRF or confirmation token through a separate disclosure channel can submit it to the public password-reset endpoint, replace the victim's password, and cause the existing sessions and API applications to be deleted. This issue is fixed in Joplin Server 3.7.2.

• CWE-620Unverified Password ChangeWhen setting a new password for a user, the product does not require knowledge of the original password, or using another form of authentication.
• CWE-640Weak Password Recovery Mechanism for Forgotten PasswordThe product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak.