Vulnerability details
CVE-2026-68560
Wekan:hell Injection in External Antivirus Scanner Path via asyncExec
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.7High | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| wekan | wekan | < 9.75 | CVEProject cvelistV5 (CNA) |
References and advisories
3- https://github.com/wekan/wekan/security/advisories/GHSA-x3xm-pxrv-jg7p x_refsource_CONFIRM
- https://github.com/wekan/wekan/commit/1a222c4477e68c76fd6a866954b535fba0a78d05 x_refsource_MISC
- https://github.com/wekan/wekan/releases/tag/v9.75 x_refsource_MISC
Details
- Published
- 2026-08-19
- Last updated
- 2026-08-21
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')