CVE-2026-53447Public exploitNetwork attack vector

Private-board disclosure via unchecked cloneBoard source ID

Published Jul 15, 2026 · Updated Jul 15, 2026

Missing authorization in WeKan before 9.35 allows remote authenticated users to read private boards through the cloneBoard method. The method passes a caller-controlled sourceBoardId to Exporter.build without calling canExport, so its raw MongoDB lookup dumps the entire board. Knowledge of a private board ID and any authenticated account is sufficient to copy cards, comments, attachments, members, and activities into an attacker-controlled board.

CVSS severity6.5
Medium
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in WeKan before 9.35 allows remote authenticated users to read private boards through the cloneBoard method. The method passes a caller-controlled sourceBoardId to Exporter.build without calling canExport, so its raw MongoDB lookup dumps the entire board. Knowledge of a private board ID and any authenticated account is sufficient to copy cards, comments, attachments, members, and activities into an attacker-controlled board.

The record

CVE
CVE-2026-53447
Published
Jul 15, 2026
Updated
Jul 15, 2026
Vendor
WeKan
Product
WeKan
Classifications
CWE-639, CWE-862, T1213
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 15, 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=< 9.35

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WeKan · WeKanversion=< 9.35

Published CVSS scores

6.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A: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 exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
CWE-862Missing Authorization
T1213Data from Information Repositories

Public exploit references

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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