{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-56828 exists.","fix":"No fix has been published for CVE-2024-56828 yet. Limit exposure of the affected software until one is available.","what":"CVE-2024-56828 is a critical vulnerability in n/a, published on 6 Jan 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-56828 and fix it if it is affected.\n\nWhat it is: CVE-2024-56828 is a critical vulnerability in n/a, published on 6 Jan 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-56828 exists.\n\nAffected product: n/a. 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-2024-56828/ (Markdown: https://insights.sbomify.com/CVE-2024-56828/index.md)","id":"CVE-2024-56828","markdown":"https://insights.sbomify.com/CVE-2024-56828/index.md","name":"CVE-2024-56828","record":{"aliases":["GHSA-2423-2c9w-8vgr"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"ChestnutCMS","requires_auth":"none","summary":"Attackers can upload malicious files via the avatar endpoint due to missing extension validation, potentially leading to remote code execution.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"chestnutcms","vendor":"1000mz"}],"cvss":{"score":9.8,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-434","name":"Unrestricted Upload of File with Dangerous Type"}],"description":"File Upload vulnerability in ChestnutCMS through 1.5.0. Based on the code analysis, it was determined that the /api/member/avatar API endpoint receives a base64 string as input. This string is then passed to the memberService.uploadAvatarByBase64 method for processing. Within the service, the base64-encoded image is parsed. For example, given a string like: data:image/html;base64,PGh0bWw+PGltZyBzcmM9eCBvbmVycm9yPWFsZXJ0KDEpPjwvaHRtbD4= the content after the comma is extracted and decoded using Base64.getDecoder().decode(). The substring from the 11th character up to the first occurrence of a semicolon (;) is assigned to the suffix variable (representing the file extension). The decoded content is then written to a file. However, the file extension is not validated, and since this functionality is exposed to the frontend, it poses significant security risks.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"File upload in n/a","id":"CVE-2024-56828","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"file_upload","year":"2024"},"n_packages":0,"n_references":3,"next":{"headline":"File upload in n/a","id":"CVE-2024-56829"},"packages":[],"prev":{"headline":"Openjpeg: heap buffer overflow in lib/openjp2/j2k.c","id":"CVE-2024-56827"},"products":["n/a"],"published":"2025-01-06","related":[{"cvss_score":9.8,"headline":"File upload in n/a","id":"CVE-2024-57450","kev_date_added":null,"published":"2025-02-03"},{"cvss_score":7.5,"headline":"Path traversal in n/a","id":"CVE-2024-57451","kev_date_added":null,"published":"2025-02-03"},{"cvss_score":7.5,"headline":"Path traversal in n/a","id":"CVE-2024-57452","kev_date_added":null,"published":"2025-02-03"},{"cvss_score":7.2,"headline":"Code injection in n/a","id":"CVE-2025-70073","kev_date_added":null,"published":"2026-02-05"},{"cvss_score":5.3,"headline":"liweiyi ChestnutCMS Filename upload FilenameUtils.getExtension unrestricted upload","id":"CVE-2025-15009","kev_date_added":null,"published":"2025-12-22"},{"cvss_score":5.3,"headline":"ChestnutCMS API Endpoint exec deserialization","id":"CVE-2025-5552","kev_date_added":null,"published":"2025-06-04"}],"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":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-01-14","vendors":["n/a"]},"summary":"Attackers can upload malicious files via the avatar endpoint due to missing extension validation, potentially leading to remote code execution.","url":"https://insights.sbomify.com/CVE-2024-56828/"}