{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-33956 exists.","fix":"No fix has been published for CVE-2023-33956 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-33956 is a medium-severity vulnerability in kanboard, published on 5 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2023-33956 and fix it if it is affected.\n\nWhat it is: CVE-2023-33956 is a medium-severity vulnerability in kanboard, published on 5 Jun 2023. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-33956 exists.\n\nAffected product: kanboard. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2023-33956/ (Markdown: https://insights.sbomify.com/CVE-2023-33956/index.md)","id":"CVE-2023-33956","markdown":"https://insights.sbomify.com/CVE-2023-33956/index.md","name":"CVE-2023-33956","record":{"aliases":["GHSA-r36m-44gg-wxg2"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Kanban project management","requires_auth":"low_privilege","summary":"Attackers can read private files uploaded by other users by manipulating URL parameters, leading to unauthorized disclosure of sensitive information.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"kanboard","vendor":"kanboard"}],"cvss":{"score":4.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"},{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"Kanboard is open source project management software that focuses on the Kanban methodology. Versions prior to 1.2.30 are subject to an Insecure direct object reference (IDOR) vulnerability present in the application's URL parameter. This vulnerability enables any user to read files uploaded by any other user, regardless of their privileges or restrictions. By Changing the file_id any user can render all the files where MimeType is image uploaded under **/files** directory regard less of uploaded by any user. This vulnerability poses a significant impact and severity to the application's security. By manipulating the URL parameter, an attacker can access sensitive files that should only be available to authorized users. This includes confidential documents or any other type of file stored within the application. The ability to read these files can lead to various detrimental consequences, such as unauthorized disclosure of sensitive information, privacy breaches, intellectual property theft, or exposure of trade secrets. Additionally, it could result in legal and regulatory implications, reputation damage, financial losses, and potential compromise of user trust. Users are advised to upgrade. There are no known workarounds for this vulnerability.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Parameter based Indirect Object Referencing leading to private file exposure in Kanboard","id":"CVE-2023-33956","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2023"},"n_packages":0,"n_references":2,"next":{"headline":"Denial of service from high number of artifact signatures in notation","id":"CVE-2023-33957"},"packages":[],"prev":{"headline":"Minio console object names with RIGHT-TO-LEFT OVERRIDE unicode character can be exploited","id":"CVE-2023-33955"},"products":["kanboard"],"published":"2023-06-05","related":[{"cvss_score":9.1,"headline":"Kanboard is Vulnerable to Reverse Proxy Authentication Bypass","id":"CVE-2026-21881","kev_date_added":null,"published":"2026-01-08"},{"cvss_score":9.1,"headline":"Kanboard Authenticated Admin Remote Code Execution via Unsafe Deserialization of Events","id":"CVE-2025-55010","kev_date_added":null,"published":"2025-08-12"},{"cvss_score":9.1,"headline":"Arbitrary File Read and Delete in kanboard","id":"CVE-2024-51747","kev_date_added":null,"published":"2024-11-11"},{"cvss_score":9.1,"headline":"Remote code execution through language setting in kanboard","id":"CVE-2024-51748","kev_date_added":null,"published":"2024-11-11"},{"cvss_score":8.8,"headline":"Business logic in n/a","id":"CVE-2017-12850","kev_date_added":null,"published":"2017-08-14"},{"cvss_score":8.8,"headline":"Business logic in n/a","id":"CVE-2017-12851","kev_date_added":null,"published":"2017-08-14"},{"cvss_score":8.5,"headline":"Kanboard is Missing Access Control on Plugin Installation leading to Administrative RCE","id":"CVE-2026-25924","kev_date_added":null,"published":"2026-02-11"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-01-08","vendors":["kanboard"]},"summary":"Attackers can read private files uploaded by other users by manipulating URL parameters, leading to unauthorized disclosure of sensitive information.","url":"https://insights.sbomify.com/CVE-2023-33956/"}