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Wiki Js CVE-2020-15236

HIGH
Path Traversal (CWE-22)
2020-10-05 security-advisories@github.com
7.5
CVSS 3.1 · NVD
View

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK

2 techniques across 2 tactics: Discovery, Collection

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.

Exploit ScenarioDerived

A remote attacker could access files and directories outside the intended path by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 1.8% exploitation probability (EPSS)

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AnalysisAI

In Wiki.js before version 2.5.151, directory traversal outside of Wiki.js context is possible when a storage module with local asset cache fetching is enabled. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Path Traversal vulnerability could allow attackers to access files and directories outside the intended path.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Validate and canonicalize file paths. Use chroot or sandboxing. Reject input containing path separators or '../' sequences.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Path Traversal (CWE-22), which allows attackers to access files and directories outside the intended path. In Wiki.js before version 2.5.151, directory traversal outside of Wiki.js context is possible when a storage module with local asset cache fetching is enabled. A malicious user can potentially read any file on the file system by crafting a special URL that allows for directory traversal. This is only possible when a storage module implementing local asset cache (e.g Local File System or Git) is enabled and that no web application firewall solution (e.g. cloudflare) strips potentially malicious URLs. Commit 084dcd69d1591586ee4752101e675d5f0ac6dcdc fixes this vulnerability by sanitizing the path before it is passed on to the storage module. The sanitization step removes any directory traversal (e.g. .. and .) sequences as well as invalid filesystem characters from the path. As a workaround, disable any storage module with local asset caching capabilities such as Local File System and Git. Affected products include: Requarks Wiki.Js. Version information: version 2.5.151.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionNVD

In Wiki.js before version 2.5.151, directory traversal outside of Wiki.js context is possible when a storage module with local asset cache fetching is enabled. A malicious user can potentially read any file on the file system by crafting a special URL that allows for directory traversal. This is only possible when a storage module implementing local asset cache (e.g Local File System or Git) is enabled and that no web application firewall solution (e.g. cloudflare) strips potentially malicious URLs. Commit 084dcd69d1591586ee4752101e675d5f0ac6dcdc fixes this vulnerability by sanitizing the path before it is passed on to the storage module. The sanitization step removes any directory traversal (e.g. .. and .) sequences as well as invalid filesystem characters from the path. As a workaround, disable any storage module with local asset caching capabilities such as Local File System and Git.

Threat Intelligence Overview

EPSS Score
1.8%
Top 25% exploitable
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 1.8%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

40
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

Affected Products (CPE)NVD

cpe:2.3:a:requarks:wiki.js:*:*:*:*:*:*:*:*
CVE-2026-92776 HIGH POC
8.6 Sep 16

Authorization bypass in Wiki.js through 2.5.314 allows an authenticated user who has been granted access to at least one

CVE-2022-1681 HIGH POC
7.2 May 12

Authentication Bypass Using an Alternate Path or Channel in GitHub repository requarks/wiki prior to 2.5.281. Rated high

CVE-2026-92775 HIGH POC
7.1 Sep 16

Server-side request forgery in Wiki.js through 2.5.314 lets an authenticated user who holds page-editing permissions for

CVE-2021-25993 MEDIUM POC
5.4 Dec 29

In Requarks wiki.js, versions 2.0.0-beta.147 to 2.5.255 are affected by Stored XSS vulnerability, where a low privileged

CVE-2021-43856 MEDIUM POC
5.4 Dec 27

Wiki.js is a wiki app built on Node.js. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, lo

CVE-2021-43855 MEDIUM POC
5.4 Dec 27

Wiki.js is a wiki app built on node.js. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, lo

CVE-2021-21383 MEDIUM POC
5.4 Mar 18

Wiki.js an open-source wiki app built on Node.js. Rated medium severity (CVSS 5.4), this vulnerability is remotely explo

CVE-2026-92774 MEDIUM POC
5.3 Sep 16

Tag-based page access restrictions in Wiki.js through 2.5.314 are bypassed because several GraphQL resolvers return page

CVE-2021-43800 HIGH
7.5 Dec 06

Wiki.js is a wiki app built on Node.js. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no a

CVE-2022-23654 MEDIUM
6.5 Feb 22

Wiki.js is a wiki app built on Node.js. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, lo

CVE-2020-4052 MEDIUM
6.1 Jun 16

In Wiki.js before 2.4.107, there is a stored cross-site scripting through template injection. Rated medium severity (CVS

CVE-2021-43842 MEDIUM
5.4 Dec 20

Wiki.js is a wiki app built on Node.js. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, lo

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