Auth bypass in Mauriceboe Trek

CVE-2026-77293

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.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published .

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-77293?
CVE-2026-77293 is a high-severity vulnerability in Mauriceboe Trek, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.1/10. Published 2026-09-24.
How severe is CVE-2026-77293?
High severity. CVSS v3 base score is 7.1 out of 10.