{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-55603 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2024-55603 yet. Limit exposure of the affected software until one is available.","what":"CVE-2024-55603 is a medium-severity authentication bypass vulnerability in kanboard, published on 18 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-55603 and fix it if it is affected.\n\nWhat it is: CVE-2024-55603 is a medium-severity authentication bypass vulnerability in kanboard, published on 18 Dec 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2024-55603 in the wild and no public exploit code.\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-2024-55603/ (Markdown: https://insights.sbomify.com/CVE-2024-55603/index.md)","id":"CVE-2024-55603","markdown":"https://insights.sbomify.com/CVE-2024-55603/index.md","name":"CVE-2024-55603","record":{"aliases":["GHSA-gv5c-8pxr-p484"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Kanban project management","requires_auth":"none","summary":"Attackers can reuse expired sessions to maintain unauthorized access to Kanboard accounts due to insufficient session invalidation checks.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"kanboard","vendor":"kanboard"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-613","name":"DEPRECATED: Insufficient Session Expiration"}],"description":"Kanboard is project management software that focuses on the Kanban methodology. In affected versions sessions are still usable even though their lifetime has exceeded. Kanboard implements a cutom session handler (`app/Core/Session/SessionHandler.php`), to store the session data in a database. Therefore, when a `session_id` is given, kanboard queries the data from the `sessions` sql table. At this point, it does not correctly verify, if a given `session_id` has already exceeded its lifetime (`expires_at`).\nThus, a session which's lifetime is already `\u003e time()`, is still queried from the database and hence a valid login. The implemented **SessionHandlerInterface::gc** function, that does remove invalid sessions, is called only **with a certain probability** (_Cleans up expired sessions. Called by `session_start()`, based on `session.gc_divisor`, `session.gc_probability` and `session.gc_maxlifetime` settings_) accordingly to the php documentation. In the official Kanboard docker image these values default to: session.gc_probability=1, session.gc_divisor=1000. Thus, an expired session is only terminated with probability 1/1000. This issue has been addressed in release 1.2.43 and all 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":"none_known"},"has_fix":false,"headline":"Insufficient session invalidation in Kanboard","id":"CVE-2024-55603","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2024"},"n_packages":0,"n_references":8,"next":{"headline":"Appsmith's Broken Access Control Allows Viewer Role User to Query Datasources","id":"CVE-2024-55604"},"packages":[],"prev":{"headline":"PenDoc vulnerable to Arbitrary File Read on updating and downloading templates using Path Traversal","id":"CVE-2024-55602"},"products":["kanboard"],"published":"2024-12-18","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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2024-12-20","vendors":["kanboard"]},"summary":"Attackers can reuse expired sessions to maintain unauthorized access to Kanboard accounts due to insufficient session invalidation checks.","url":"https://insights.sbomify.com/CVE-2024-55603/"}