Vulnerability · Published Aug 19, 2026 · Assigned by GitHub_M

CVE-2026-68560Wekan:hell Injection in External Antivirus Scanner Path via asyncExec

High 7.7

In plain English

A high-severity OS command injection in wekan from wekan. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).

Severity (CVSS 4.0)7.7High

Exploit odds (30 days)0.6%top 51.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
wekan	wekan	< 9.75

Weakness: CWE-78 · Vector: 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

References

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