CVE-2026-29056 | Kanboard up to 1.2.50 Registration register dynamically-determined object attributes (GHSA-2jvj-q44v-6p3x)

VDB-351490 · CVE-2026-29056 · GHSA-2JVJ-Q44V-6P3X KANBOARD UP TO 1.2.50 REGISTRATION REGISTER DYNAMICALLY-DETERMINED OBJECT ATTRIBUTES HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 6.0 $0-$5k 0.80+ Summaryinfo A vulnerability was found in Kanboard up to 1.2.50. It has been declared as critical. The impacted element is the function UserInviteController::register of the component Registration Handler. Executing a manipulation can lead to dynamically-determined object attributes. This vulnerability is registered as CVE-2026-29056. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component. Detailsinfo A vulnerability has been found in Kanboard up to 1.2.50 and classified as critical. This vulnerability affects the function UserInviteController::register of the component Registration Handler. The manipulation with an unknown input leads to a dynamically-determined object attributes vulnerability. The CWE definition for the vulnerability is CWE-915. The product receives input from an upstream component that specifies multiple attributes, properties, or fields that are to be initialized or updated in an object, but it does not properly control which attributes can be modified. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes: Kanboard is project management software focused on Kanban methodology. Prior to 1.2.51, Kanboard's user invite registration endpoint (`UserInviteController::register()`) accepts all POST parameters and passes them to `UserModel::create()` without filtering out the `role` field. An attacker who receives an invite link can inject `role=app-admin` in the registration form to create an administrator account. Version 1.2.51 fixes the issue. The advisory is available at github.com. This vulnerability was named CVE-2026-29056 since 03/03/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. Upgrading to version 1.2.51 eliminates this vulnerability. Productinfo Type Forum Software Name Kanboard Version 1.2.0 1.2.1 1.2.2 1.2.3 1.2.4 1.2.5 1.2.6 1.2.7 1.2.8 1.2.9 1.2.10 1.2.11 1.2.12 1.2.13 1.2.14 1.2.15 1.2.16 1.2.17 1.2.18 1.2.19 1.2.20 1.2.21 1.2.22 1.2.23 1.2.24 1.2.25 1.2.26 1.2.27 1.2.28 1.2.29 1.2.30 1.2.31 1.2.32 1.2.33 1.2.34 1.2.35 1.2.36 1.2.37 1.2.38 1.2.39 1.2.40 1.2.41 1.2.42 1.2.43 1.2.44 1.2.45 1.2.46 1.2.47 1.2.48 1.2.49 1.2.50 License open-source Website Product: https://github.com/kanboard/kanboard/ CPE 2.3info 🔒 🔒 🔒 CPE 2.2info 🔒 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 6.3 VulDB Meta Temp Score: 6.0 VulDB Base Score: 6.3 VulDB Temp Score: 6.0 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Dynamically-determined object attributes CWE: CWE-915 / CWE-913 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: Kanboard 1.2.51 Timelineinfo 03/03/2026 CVE reserved 03/18/2026 +15 days Advisory disclosed 03/18/2026 +0 days VulDB entry created 03/18/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: GHSA-2jvj-q44v-6p3x Status: Confirmed CVE: CVE-2026-29056 (🔒) GCVE (CVE): GCVE-0-2026-29056 GCVE (VulDB): GCVE-100-351490 Entryinfo Created: 03/18/2026 07:26 Changes: 03/18/2026 07:26 (68) Complete: 🔍 Cache ID: 99:FE9:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸