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CVE-2026-78886— liketrek TREK Public Journey Photo Proxy journey-public.controller.ts path traversal

Quick assessment

Affected
liketrek 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.

在 liketrek TREK 3.0.22 及更早版本中发现了一个安全漏洞。该漏洞影响“公开旅程照片代理”（Public Journey Photo Proxy）组件中文件 的某个未知函数。执行精心构造的操作可导致路径遍历攻击。 该漏洞可从远程发起，但攻击复杂度较高，利用难度也被评估为困难。将此组件升级至 3.1.0 版本可消除此问题。建议尽快升级受影响的组件。

CVSS 3.7 · Low

Affected Version Matrix 24

VendorProduct Version RangeStatus
liketrek TREK 3.0.0 affected
3.0.1 affected
3.0.2 affected
3.0.3 affected
3.0.4 affected
3.0.5 affected
3.0.6 affected
3.0.7 affected
… +16 more rows
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I. Basic Information for CVE-2026-78886

Vulnerability Information
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Vulnerability Title
liketrek TREK Public Journey Photo Proxy journey-public.controller.ts path traversal
Source: CVE Program / CVE List V5
Vulnerability Description
A security flaw has been discovered in liketrek TREK up to 3.0.22. This affects an unknown function of the file server/src/nest/journey/journey-public.controller.ts of the component Public Journey Photo Proxy. Performing a manipulation results in path traversal. The attack can be initiated remotely. The attack's complexity is rated as high. The exploitability is reported as difficult. Upgrading to version 3.1.0 mitigates this issue. It is advisable to upgrade the affected component.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
liketrek TREK 3.0.0 cpe:2.3:a:liketrek:trek:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-78886

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-78886

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Vendor Advisories for CVE-2026-78886 (2)

Proof of Concept for CVE-2026-78886 (1)

News Coverage for CVE-2026-78886 (1)

Other References for CVE-2026-78886 (1)

Same Patch Batch · liketrek · 2026-08-25 · 5 CVEs total

CVE-2026-78863 6.3 MEDIUM liketrek TREK Pre-2FA mfa_token authService.ts loginUser improper authentication
CVE-2026-78864 6.3 MEDIUM liketrek TREK Journey Entry Update journey.controller.t journeyService.updateEntry sql inj
CVE-2026-78885 5.6 MEDIUM liketrek TREK OIDC Service oidcService.ts findOrCreateUser improper authentication
CVE-2026-78887 3.7 LOW liketrek TREK Journey Photo Proxy validateShareTokenForAsset authorization

IV. Related Vulnerabilities

Same product: TREK
Same vendor: liketrek
Same weakness: CWE-22

V. Comments for CVE-2026-78886

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