Wekan up to 9.74 File Validation models/fileValidation.js shellQuote path os command injection

Summaryinfo

A vulnerability, which was classified as critical, has been found in Wekan up to 9.74. This issue affects the function shellQuote of the file models/fileValidation.js of the component File Validation. This manipulation of the argument path causes os command injection. This vulnerability is handled as CVE-2026-68560. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in Wekan up to 9.74 and classified as critical. Affected by this vulnerability is the function shellQuote of the file models/fileValidation.js of the component File Validation. The manipulation of the argument path with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Wekan is open source kanban built with Meteor. Prior to 9.75, models/fileValidation.js interpolated the uploaded fileObj.path into the administrator-configured externalCommandLine at its {file} placeholder and executed the result through asyncExec, which is promisify(exec) and invokes `/bin/sh -c`. On deployments with an external scanner configured, an authenticated user able to upload an attachment could place shell metacharacters such as command substitutions in the filename and execute commands as the Wekan server process. Version 9.75 adds shellQuote() and passes the file path as a POSIX single-quoted argument so shell metacharacters cannot escape the placeholder. This issue is fixed in version 9.75.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-68560 since 07/30/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading to version 9.75 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• Wekan

Version

• 9.0
• 9.1
• 9.2
• 9.3
• 9.4
• 9.5
• 9.6
• 9.7
• 9.8
• 9.9
• 9.10
• 9.11
• 9.12
• 9.13
• 9.14
• 9.15
• 9.16
• 9.17
• 9.18
• 9.19
• 9.20
• 9.21
• 9.22
• 9.23
• 9.24
• 9.25
• 9.26
• 9.27
• 9.28
• 9.29
• 9.30
• 9.31
• 9.32
• 9.33
• 9.34
• 9.35
• 9.36
• 9.37
• 9.38
• 9.39
• 9.40
• 9.41
• 9.42
• 9.43
• 9.44
• 9.45
• 9.46
• 9.47
• 9.48
• 9.49
• 9.50
• 9.51
• 9.52
• 9.53
• 9.54
• 9.55
• 9.56
• 9.57
• 9.58
• 9.59
• 9.60
• 9.61
• 9.62
• 9.63
• 9.64
• 9.65
• 9.66
• 9.67
• 9.68
• 9.69
• 9.70
• 9.71
• 9.72
• 9.73
• 9.74

Website

• Product: https://github.com/wekan/wekan/

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