mauriceboe TREK up to 3.2.x Collab Service collabService.ts deleteNoteFile tripId/noteId/fileId improper authorization

Summaryinfo

A vulnerability, which was classified as problematic, has been found in mauriceboe TREK up to 3.2.x. Affected by this vulnerability is the function deleteNoteFile of the file server/src/services/collabService.ts of the component Collab Service. The manipulation of the argument tripId/noteId/fileId leads to improper authorization. This vulnerability is traded as CVE-2026-77293. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in mauriceboe TREK up to 3.2.x and classified as problematic. This issue affects the function deleteNoteFile of the file server/src/services/collabService.ts of the component Collab Service. The manipulation of the argument tripId/noteId/fileId with an unknown input leads to a improper authorization vulnerability. Using CWE to declare the problem leads to CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. Impacted is integrity, and availability. The summary by CVE is:

TREK is a collaborative travel planner. Prior to 3.3.0, the DELETE /api/trips/:tripId/collab/notes/:noteId/files/:fileId endpoint authorizes an authenticated user against the attacker-controlled tripId but deleteNoteFile in server/src/services/collabService.ts resolves the target only by note and file identifiers without requiring the file to belong to that trip. A user with edit access to any trip can submit identifiers belonging to another user's trip and permanently delete that note-file attachment. Sequential identifiers make broad targeting practical, while attachment read operations remain trip-scoped and are not affected. This issue is fixed in version 3.3.0.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-77293 since 08/20/2026. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1548.002 according to MITRE ATT&CK.

Upgrading to version 3.3.0 eliminates this vulnerability.

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Productinfo

Vendor

• mauriceboe

Name

• TREK

Version

• 3.0
• 3.1
• 3.2

CPE 2.3info

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CPE 2.2info

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