CVE-2026-68560: high-severity vulnerability in wekan
Wekan:hell Injection in External Antivirus Scanner Path via asyncExec
Published · Updated
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.7epss 0.6%
exploitation probability
0.6%top 52% of all CVEs
observed exploitation
nono source reports it
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: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
wekan · wekanRelated CVEs — wekan
In the same product, most dangerous first.
CVE-2026-52891CRITICALWekan: Shell Injection via Avatar UploadEPSS 0.8%CVE-2026-55652CRITICALWekan: Header-login IP allowlist bypass via X-Forwarded-For spoofing in Wekan allows unauthenticated full account takeover (incl. admin)EPSS 0.6%CVE-2026-68901MEDIUMWeKan Board Export REST Endpoints: NULL Pointer Dereference on Invalid authToken Leads to Uncaught Exception / Remote Denial of ServiceEPSS 0.5%CVE-2026-68899HIGHWekan: File Upload MIME Type Validation Bypass — Stored XSS via Missing System Binary FallbackEPSS 0.5%CVE-2026-68561HIGHWekan: a low-privilege board member escalates to board admin and takes over a private board via the `sort` collection-allow ruleEPSS 0.5%CVE-2026-53446MEDIUMWekan: Server-Side Request Forgery (SSRF) via webhook integration URLsEPSS 0.5%