CVE-2026-68560Network attack vector

Authenticated command injection via scanner filename

Published Aug 19, 2026 · Updated Aug 19, 2026

Command injection in WeKan before 9.75 allows remote authenticated users to execute commands via a crafted attachment filename. In models/fileValidation.js, the external scanner path replaces {file} in the administrator-set externalCommandLine with fileObj.path and passes the result to asyncExec, which invokes /bin/sh -c; double quotes do not stop $() or backtick expansion. Reachability requires an authenticated account that can upload attachments and an external scanner configuration, and successful exploitation runs as the WeKan server process.

CVSS severity7.7
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in WeKan before 9.75 allows remote authenticated users to execute commands via a crafted attachment filename. In models/fileValidation.js, the external scanner path replaces {file} in the administrator-set externalCommandLine with fileObj.path and passes the result to asyncExec, which invokes /bin/sh -c; double quotes do not stop $() or backtick expansion. Reachability requires an authenticated account that can upload attachments and an external scanner configuration, and successful exploitation runs as the WeKan server process.

The record

CVE
CVE-2026-68560
Published
Aug 19, 2026
Updated
Aug 19, 2026
Vendor
WeKan
Product
WeKan
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 19, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 9.75

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WeKan · WeKanversion=< 9.75

Published CVSS scores

9.9WeKanCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
7.7GitHub_MCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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