Lauri Ojansivu

43 exploits Active since May 2023
CVE-2026-52890 WRITEUP HIGH WRITEUP
Wekan: Arbitrary file read and server DoS via attachment versions.original.path
Wekan is open source kanban built with Meteor. Prior to 9.31, Wekan allows a logged-in board member to insert an attachment document through the /attachments/insert DDP method with attacker-controlled versions.original.path and versions.original.storage fields. The server/permissions/attachments.js insert rule checks only board write access, and FileStoreStrategyFilesystem.getReadStream() in models/lib/fileStoreStrategy.js streams the stored path without a storage-root containment check, allowing arbitrary file reads and denial of service through special files such as /dev/zero. This issue is fixed in version 9.31.
CVSS 7.1
CVE-2026-52891 WRITEUP CRITICAL WRITEUP
Wekan: Shell Injection via Avatar Upload
Wekan is open source kanban built with Meteor. Prior to 9.07, Wekan avatar upload functionality embeds user-supplied filenames into paths later passed to child_process.exec() for MIME-type detection. Because models/avatars.js and models/fileValidation.js used a shell command with the avatar filename, shell metacharacters such as backticks and $() in the filename could execute commands on the server. This issue is fixed in version 9.07.
CVSS 9.9
CVE-2026-52892 WRITEUP MEDIUM WRITEUP
Wekan < 9.32 Custom Fields API - Read-Only Member Privilege Escalation
Wekan is open source kanban built with Meteor. Prior to 9.32, Wekan REST handlers in server/models/customFields.js use read-level Authentication.checkBoardAccess instead of write-level Authentication.checkBoardWriteAccess for mutating custom-field routes. A read-only board member can call POST, PUT, and DELETE handlers for /api/boards/:boardId/custom-fields and custom-field dropdown items to create, update, or delete board custom fields. This issue is fixed in version 9.32.
CVSS 6.5
CVE-2026-52893 WRITEUP CRITICAL WRITEUP
Wekan: OIDC Account Takeover via Unconditional Email-Based Account Merge in onCreateUser hook
Wekan is open source kanban built with Meteor. Prior to 9.32, the Wekan Accounts.onCreateUser hook in server/models/users.js merges OIDC logins into existing accounts when the OIDC email or username matches an existing Wekan user, without verifying ownership or checking email_verified. An attacker using an OIDC provider account with a victim's email or username can cause Wekan to merge the attacker's OIDC credentials into the victim account and then log in as that account. This issue is fixed in version 9.32.
CVE-2026-53444 WRITEUP HIGH WRITEUP
Wekan: Missing authorization on OIDC Meteor methods allows privilege escalation to admin
Wekan is open source kanban built with Meteor. Prior to 9.32, Wekan OIDC-related Meteor methods in packages/wekan-oidc/oidc_server.js, server/models/org.js, and server/models/team.js are globally callable without the admin authorization checks used by their non-OIDC counterparts. Authenticated users can call setCreateOrgFromOidc, setOrgAllFieldsFromOidc, setCreateTeamFromOidc, setTeamAllFieldsFromOidc, boardRoutineOnLogin, or groupRoutineOnLogin to create or modify organizations and teams, and groupRoutineOnLogin can grant global admin privileges when PROPAGATE_OIDC_DATA is enabled. This issue is fixed in version 9.32.
CVE-2026-53445 WRITEUP HIGH WRITEUP
Wekan: Authorization bypass in copyBoard DDP method allows any user to copy private boards
Wekan is open source kanban built with Meteor. Prior to 9.32, the Wekan copyBoard Meteor DDP method in server/publications/boards.js copies a board by caller-supplied board ID without checking this.userId, membership, or admin access. Any authenticated user can copy a private board they are not a member of, including its cards, checklists, custom fields, labels, and rules, while the REST POST /api/boards/:boardId/copy path correctly checks board admin access. This issue is fixed in version 9.32.
CVE-2026-53446 WRITEUP MEDIUM WRITEUP
Wekan: Server-Side Request Forgery (SSRF) via webhook integration URLs
Wekan is open source kanban built with Meteor. Prior to 9.32, Wekan webhook integration URLs in models/integrations.js are stored from user input and later fetched by server/notifications/outgoing.js without applying the existing validateAttachmentUrl() private-network checks from models/lib/attachmentUrlValidation.js. A board administrator can configure webhook URLs that cause server-side requests to internal or metadata services. This issue is fixed in version 9.32.
CVE-2026-53447 WRITEUP MEDIUM WRITEUP
Wekan < 9.35 cloneBoard - Private Board Information Disclosure
Wekan is open source kanban built with Meteor. Prior to 9.35, the Wekan cloneBoard Meteor method in models/import.js uses caller-supplied sourceBoardId to build a board export through models/exporter.js without invoking canExport() or checking source-board membership. Any authenticated user who knows a private board ID can clone the board into their own account and read its cards, comments, attachments, member information, and activities. This issue is fixed in version 9.35.
CVSS 6.5
CVE-2026-55234 WRITEUP HIGH WRITEUP
Wekan < 9.37 Cards/Lists/Swimlanes - Cross-Board Write Access Control Bypass
Wekan is open source kanban built with Meteor. Prior to 9.37, Wekan DDP update allow rules in server/permissions/cards.js, server/permissions/lists.js, and server/permissions/swimlanes.js authorize against the stored source boardId and do not validate a new boardId in the update modifier. Any authenticated user with write access to their own board can call /cards/update, /lists/update, or /swimlanes/update to move cards, lists, or swimlanes into a private board they are not a member of. This issue is fixed in version 9.37.
CVSS 8.5
CVE-2026-55652 WRITEUP CRITICAL WRITEUP
Wekan < 9.46 Header Login - X-Forwarded-For Authentication Bypass
Wekan is open source kanban built with Meteor. Prior to 9.46, header-login with HEADER_LOGIN_TRUSTED_IPS uses getRequestIp() in server/lib/headerLoginAuth.js to trust the client-supplied X-Forwarded-For header before the real socket address, allowing an unauthenticated attacker to send HEADER_LOGIN_ID for any username and receive a meteor_login_token session, including for admin. This issue is fixed in version 9.46.
CVSS 9.8
CVE-2026-59154 WRITEUP MEDIUM WRITEUP
Wekan: Checklist direct DDP updates can write checklist data into private boards
Wekan is open source kanban built with Meteor. Prior to 9.64, Wekan has a cross-board authorization bypass in the direct Meteor collection allow rules for Checklists and ChecklistItems because updates are authorized only against the current source doc.cardId and do not inspect the destination cardId or boardId in the update modifier, allowing a low-privileged authenticated user with write access to one board and knowledge of a target private card id to create checklist data on an accessible card and move it into a private board where they are not a member. This issue is fixed in version 9.64.
CVSS 4.3
CVE-2023-31779 WRITEUP MEDIUM WRITEUP
Wekan < 6.84 - Authenticated Stored Cross-Site Scripting via Reaction to Comment Feature
Wekan v6.84 and earlier is vulnerable to Cross Site Scripting (XSS). An attacker with user privilege on kanban board can insert JavaScript code in in "Reaction to comment" feature.
CVSS 5.4
CVE-2026-1892 WRITEUP MEDIUM WRITEUP
Wekan < 8.21 - Improper Authorization via setBoardOrgs Function
A security vulnerability has been detected in WeKan up to 8.20. This affects the function setBoardOrgs of the file models/boards.js of the component REST API. Such manipulation of the argument item.cardId/item.checklistId/card.boardId leads to improper authorization. The attack may be launched remotely. A high complexity level is associated with this attack. The exploitability is reported as difficult. Upgrading to version 8.21 mitigates this issue. The name of the patch is cabfeed9a68e21c469bf206d8655941444b9912c. It is suggested to upgrade the affected component.
CVSS 5.0
CVE-2026-1894 WRITEUP MEDIUM WRITEUP
Wekan < 8.21 - Improper Authorization via REST API Checklist Items Manipulation
A vulnerability was detected in WeKan up to 8.20. This impacts an unknown function of the file models/checklistItems.js of the component REST API. Performing a manipulation of the argument item.cardId/item.checklistId/card.boardId results in improper authorization. Remote exploitation of the attack is possible. Upgrading to version 8.21 will fix this issue. The patch is named 251d49eea94834cf351bb395808f4a56fb4dbb44. Upgrading the affected component is recommended.
CVSS 6.3
CVE-2026-1895 WRITEUP MEDIUM WRITEUP
WeKan <8.20 - Improper Access Controls
A flaw has been found in WeKan up to 8.20. Affected is the function applyWipLimit of the file models/lists.js of the component Attachment Storage Handler. Executing a manipulation can lead to improper access controls. The attack can be executed remotely. Upgrading to version 8.21 is able to address this issue. This patch is called 8c0b4f79d8582932528ec2fdf2a4487c86770fb9. It is recommended to upgrade the affected component.
CVSS 6.3
CVE-2026-1896 WRITEUP MEDIUM WRITEUP
WeKan <8.20 - Improper Access Controls
A vulnerability has been found in WeKan up to 8.20. Affected by this vulnerability is the function ComprehensiveBoardMigration of the file server/migrations/comprehensiveBoardMigration.js of the component Migration Operation Handler. The manipulation of the argument boardId leads to improper access controls. The attack is possible to be carried out remotely. Upgrading to version 8.21 addresses this issue. The identifier of the patch is cc35dafef57ef6e44a514a523f9a8d891e74ad8f. Upgrading the affected component is advised.
CVSS 6.3
CVE-2026-1897 WRITEUP MEDIUM WRITEUP
WeKan < 8.21 - Missing Authorization in Position-History Tracking
A vulnerability was found in WeKan up to 8.20. Affected by this issue is some unknown functionality of the file server/methods/positionHistory.js of the component Position-History Tracking. The manipulation results in missing authorization. The attack may be performed from remote. Upgrading to version 8.21 can resolve this issue. The patch is identified as 55576ec17722db094835470b386162c9a662fb60. It is advisable to upgrade the affected component.
CVSS 4.3
CVE-2026-1898 WRITEUP MEDIUM WRITEUP
Wekan < 8.21 - Improper Access Control in LDAP User Sync
A vulnerability was determined in WeKan up to 8.20. This affects an unknown part of the file packages/wekan-ldap/server/syncUser.js of the component LDAP User Sync. This manipulation causes improper access controls. It is possible to initiate the attack remotely. Upgrading to version 8.21 is able to mitigate this issue. Patch name: 146905a459106b5d00b4f09453a6554255e6965a. You should upgrade the affected component.
CVSS 6.3
CVE-2026-1962 WRITEUP MEDIUM WRITEUP
Wekan < 8.21 - Improper Access Controls in Attachment Migration
A vulnerability has been found in WeKan up to 8.20. The impacted element is an unknown function of the file server/attachmentMigration.js of the component Attachment Migration. The manipulation leads to improper access controls. The attack may be initiated remotely. Upgrading to version 8.21 is sufficient to resolve this issue. The identifier of the patch is 053bf1dfb76ef230db162c64a6ed50ebedf67eee. It is recommended to upgrade the affected component.
CVSS 6.3
CVE-2026-1963 WRITEUP MEDIUM WRITEUP
WeKan < 8.21 - Improper Access Control in Attachment Storage
A vulnerability was found in WeKan up to 8.20. This affects an unknown function of the file models/attachments.js of the component Attachment Storage. The manipulation results in improper access controls. The attack may be launched remotely. Upgrading to version 8.21 mitigates this issue. The patch is identified as c413a7e860bc4d93fe2adcf82516228570bf382d. Upgrading the affected component is advised.
CVSS 6.3
CVE-2026-1964 WRITEUP MEDIUM WRITEUP
Wekan < 8.21 - Improper Access Control in REST Endpoint
A vulnerability was determined in WeKan up to 8.20. This impacts an unknown function of the file models/boards.js of the component REST Endpoint. This manipulation causes improper access controls. Remote exploitation of the attack is possible. Upgrading to version 8.21 will fix this issue. Patch name: 545566f5663545d16174e0f2399f231aa693ab6e. It is advisable to upgrade the affected component.
CVSS 4.3
CVE-2026-2205 WRITEUP MEDIUM WRITEUP
Wekan < 8.21 - Information Disclosure in Meteor Publication Handler
A vulnerability was identified in WeKan up to 8.20. This affects an unknown part of the file server/publications/cards.js of the component Meteor Publication Handler. Such manipulation leads to information disclosure. The attack may be performed from remote. Upgrading to version 8.21 is able to mitigate this issue. The name of the patch is 0f5a9c38778ca550cbab6c5093470e1e90cb837f. Upgrading the affected component is advised.
CVSS 4.3
CVE-2026-2206 WRITEUP MEDIUM WRITEUP
Wekan < 8.21 - Improper Access Control in Administrative Repair Handler
A security flaw has been discovered in WeKan up to 8.20. This vulnerability affects unknown code of the file server/methods/fixDuplicateLists.js of the component Administrative Repair Handler. Performing a manipulation results in improper access controls. It is possible to initiate the attack remotely. Upgrading to version 8.21 is able to resolve this issue. The patch is named 4ce181d17249778094f73d21515f7f863f554743. It is advisable to upgrade the affected component.
CVSS 6.3
CVE-2026-2207 WRITEUP MEDIUM WRITEUP
Wekan < 8.21 - Information Disclosure in Activity Publication Handler
A weakness has been identified in WeKan up to 8.20. This issue affects some unknown processing of the file server/publications/activities.js of the component Activity Publication Handler. Executing a manipulation can lead to information disclosure. It is possible to launch the attack remotely. Upgrading to version 8.21 is capable of addressing this issue. This patch is called 91a936e07d2976d4246dfe834281c3aaa87f9503. You should upgrade the affected component.
CVSS 5.3
CVE-2026-2208 WRITEUP MEDIUM WRITEUP
Wekan < 8.21 - Missing Authorization in Rules Handler
A security vulnerability has been detected in WeKan up to 8.20. Impacted is an unknown function of the file server/publications/rules.js of the component Rules Handler. The manipulation leads to missing authorization. The attack can be initiated remotely. Upgrading to version 8.21 is recommended to address this issue. The identifier of the patch is a787bcddf33ca28afb13ff5ea9a4cb92dceac005. The affected component should be upgraded.
CVSS 4.3