CVE-2026-59815

Joplin is an open source note-taking and to-do application that organises notes and lists into notebooks. Prior to 3.7.7, Joplin Server's ItemModel.checkIfAllowed() authorizes writes to items with a share ID when any share_users row exists for the caller, without requiring ShareUserStatus.Accepted. A low-privileged authenticated user with a pending folder-share invitation can create an item under the share ID, and ShareModel.updateSharedItems3() propagates the injected content to the owner and accepted participants before the attacker accepts the invitation. This issue is fixed in version 3.7.7.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/laurent22/joplin/commit/dff533ccbd2b300eac218a11a7619280865e2e9b
https://github.com/laurent22/joplin/security/advisories/GHSA-qq59-gg3w-pf7v
https://github.com/laurent22/joplin/security/advisories/GHSA-qq59-gg3w-pf7v

Configurations

No configuration.

History

24 Sep 2026, 23:17

Type	Values Removed	Values Added
References	~~() https://github.com/laurent22/joplin/security/advisories/GHSA-qq59-gg3w-pf7v -~~	() https://github.com/laurent22/joplin/security/advisories/GHSA-qq59-gg3w-pf7v -

21 Sep 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-21 22:16

Updated : 2026-09-24 23:17

NVD link : CVE-2026-59815

Mitre link : CVE-2026-59815

CVE.ORG link : CVE-2026-59815

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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