Description
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.
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Remediation
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Tracking
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Advisories
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References
History
Wed, 19 Aug 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | Wekan:hell Injection in External Antivirus Scanner Path via asyncExec | |
| Weaknesses | CWE-78 | |
| References |
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| Metrics |
cvssV4_0
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Subscriptions
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-08-19T19:23:45.761Z
Reserved: 2026-07-30T19:56:44.102Z
Link: CVE-2026-68560
No data.
Status : Received
Published: 2026-08-19T20:17:21.250
Modified: 2026-08-19T20:17:21.250
Link: CVE-2026-68560
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OpenCVE Enrichment
No data.
Weaknesses
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CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')