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CVE-2026-77293— TREK: Cross-user note-file deletion (IDOR / Broken Access Control)

Quick assessment

Affected
mauriceboe TREK
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TREK 是一款协作式旅行规划工具。在 3.3.0 版本之前， 端点在授权时，仅对攻击者控制的 所对应的认证用户进行检查；但 中的 函数在解析目标资源时，仅依赖 和 ，并未验证该文件是否属于指定的行程（trip）。因此，任何拥有对任意行程编辑权限的用户，都可以提交属于其他用户行程的 和 ，从而永久删除该行程中的笔记文件附件。由于标识符（ID）是顺序生成的，使得广泛攻击成为可能；而附件的读取操作仍受行程范围限制，未受影响此漏洞。该问题已在 3.3.0 版本中修复。

CVSS 7.1 · High EPSS 0.38% · P30

Possible ATT&CK Techniques 1 AI

T1485.001 · Lifecycle-Triggered Deletion

Affected Version Matrix 1

VendorProduct Version RangeStatus
mauriceboe TREK < 3.3.0 affected
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I. Basic Information for CVE-2026-77293

Vulnerability Information
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Vulnerability Title
TREK: Cross-user note-file deletion (IDOR / Broken Access Control)
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
mauriceboe TREK < 3.3.0 -

II. Public POCs for CVE-2026-77293

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III. Intelligence Information for CVE-2026-77293

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Patches & Fixes for CVE-2026-77293 (1)

Vendor Advisories for CVE-2026-77293 (1)

Other References for CVE-2026-77293 (1)

Same Patch Batch · mauriceboe · 2026-09-24 · 4 CVEs total

CVE-2026-77294 8.1 HIGH TREK: Server-Side Request Forgery via User-Configurable LLM Base URL
CVE-2026-77320 5.3 MEDIUM TREK: Public trip share link ignores the `share_map` permission server-side (client-enforc
CVE-2026-77321 4.3 MEDIUM TREK MCP trip summary bypasses delegated OAuth read scopes

IV. Related Vulnerabilities

Same product: TREK
Same vendor: mauriceboe
Same weakness: CWE-639

V. Comments for CVE-2026-77293

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