CVE-2026-25561— WeKan < 8.19 Attachment Upload Object Relationship Validation Bypass
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I. Basic Information for CVE-2026-25561
Vulnerability Information
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Vulnerability Title
WeKan < 8.19 Attachment Upload Object Relationship Validation Bypass
Source: NVD (National Vulnerability Database)
Vulnerability Description
WeKan versions prior to 8.19 contain an authorization weakness in the attachment upload API. The API does not fully validate that provided identifiers (such as boardId, cardId, swimlaneId, and listId) are consistent and refer to a coherent card/board relationship, enabling attempts to upload attachments with mismatched object relationships.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
WeKan 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WeKan是WeKan开源的一个看板应用程序。 WeKan 8.19之前版本存在安全漏洞，该漏洞源于附件上传API未充分验证提供的标识符一致性和关联性，可能导致尝试上传具有不匹配对象关系的附件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-25561
| # | POC Description | Source Link | Shenlong Link |
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Same Patch Batch · WeKan · 2026-02-07 · 10 CVEs total
| CVE-2026-25567 | WeKan < 8.19 Card Comment Author Spoofing via User-controlled authorId | |
| CVE-2026-25565 | WeKan < 8.19 Read-only Board Roles Can Update Cards | |
| CVE-2026-25568 | WeKan < 8.19 allowPrivateOnly Setting Enforcement Bypass | |
| CVE-2026-25564 | WeKan < 8.19 Checklist Deletion IDOR via Missing Relationship Validation | |
| CVE-2026-25562 | WeKan < 8.19 Attachments Publication Information Disclosure | |
| CVE-2026-25560 | WeKan < 8.19 LDAP Authentication Filter Injection | |
| CVE-2026-25563 | WeKan < 8.19 Checklist Creation Cross-Board IDOR | |
| CVE-2026-25566 | WeKan < 8.19 Cross-board Card Move Without Destination Authorization | |
| CVE-2026-25859 | WeKan < 8.20 Migration Functionality Insufficient Permission Checks |
IV. Related Vulnerabilities
Same product: WeKan
- CVE-2026-41455
WeKan < 8.35 SSRF via Webhook URL - CVE-2026-41454
WeKan < 8.35 Missing Authorization via Integration REST API - CVE-2026-30847
Wekan Credential Leak via notificationUsers Publication Expo - CVE-2026-30846
Wekan Exposes All Global Webhook Integrations through global - CVE-2026-30845
Wekan Exposes Sensitive Data through Lack of Field Filtering
Same vendor: WeKan
- CVE-2026-41455
WeKan < 8.35 SSRF via Webhook URL - CVE-2026-41454
WeKan < 8.35 Missing Authorization via Integration REST API - CVE-2026-30847
Wekan Credential Leak via notificationUsers Publication Expo - CVE-2026-30846
Wekan Exposes All Global Webhook Integrations through global - CVE-2026-30845
Wekan Exposes Sensitive Data through Lack of Field Filtering
Same weakness: CWE-863
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Account Lock Bypass via Magic Link or Pass Key Authenticatio - CVE-2026-42571
Privilege Escalation Attack affecting Pelican Web UI - CVE-2025-15633
HCL BigFix WebUI is affected by an improper authorization vu - CVE-2026-42296
Argo Workflows has incomplete fix for CVE-2026-31892: hostNe - CVE-2025-66170
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V. Comments for CVE-2026-25561
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