Is this vulnerability remotely exploitable, or does it require local access?

It can be remotely exploitable if the SiYuan instance exposes the /api/file/getFile endpoint over a network interface accessible to the attacker. No local shell access is required; the attacker only needs the ability to send crafted HTTP requests.

What level of access does an attacker need to exploit this issue?

The attacker needs network access to the running SiYuan service and the ability to reach the /api/file/getFile endpoint. No prior authentication may be required if the endpoint is accessible without login, but the exact requirement depends on the deployment's access controls.

What is the safest general fix pattern for this type of vulnerability?

The most robust fix is to avoid serving arbitrary filesystem paths altogether and instead implement an allowlist or ID-based abstraction over files. Additionally, always canonicalize paths and perform access control checks on the canonical form using logic consistent with the underlying filesystem's case sensitivity and path semantics.

Severity:

HIGH RISK

(7.5)

Path Traversal via Case-Sensitive Filtering (CWE-22) in SiYuan /api/file/getFile

CVE-2026-25992

Published:

Feb 10, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Path Traversal / Improper Path Restriction

CWE:

CWE-22

Impact:

Unauthorized File Read / Information Disclosure

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

Path Traversal / Improper Path Restriction

CWE:

CWE-22

Impact:

Unauthorized File Read / Information Disclosure

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

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Path Traversal via Case-Sensitive Filtering (CWE-22) in SiYuan /api/file/getFile

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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