{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-21056 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-21056 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-21056 is a medium-severity path traversal vulnerability in Fusionpbx Fusionpbx, published on 20 May 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-21056 and fix it if it is affected.\n\nWhat it is: CVE-2020-21056 is a medium-severity path traversal vulnerability in Fusionpbx Fusionpbx, published on 20 May 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2020-21056 in the wild and no public exploit code.\n\nAffected product: Fusionpbx Fusionpbx. 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-2020-21056/ (Markdown: https://insights.sbomify.com/CVE-2020-21056/index.md)","id":"CVE-2020-21056","markdown":"https://insights.sbomify.com/CVE-2020-21056/index.md","name":"CVE-2020-21056","record":{"aliases":["GHSA-mrp8-cxc7-63jx"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"FusionPBX","requires_auth":"low_privilege","summary":"Remote attackers can create arbitrary folders in FusionPBX via directory traversal in the folder creation script.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"fusionpbx","vendor":"fusionpbx"}],"cvss":{"score":4.3,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"Directory Traversal vulnerability exists in FusionPBX 4.5.7, which allows a remote malicious user to create folders via the folder variale to app\\edit\\foldernew.php.","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":"Path traversal in n/a","id":"CVE-2020-21056","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"fusionpbx:fusionpbx","products":["fusionpbx:fusionpbx"],"type":"path_traversal","year":"2020"},"n_packages":0,"n_references":2,"next":{"headline":"Path traversal in n/a","id":"CVE-2020-21057"},"packages":[],"prev":{"headline":"Path traversal in n/a","id":"CVE-2020-21055"},"products":["n/a"],"published":"2021-05-20","related":[{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2022-35153","kev_date_added":null,"published":"2022-08-18"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2022-28055","kev_date_added":null,"published":"2022-05-04"},{"cvss_score":8.8,"headline":"Path traversal in n/a","id":"CVE-2021-43404","kev_date_added":null,"published":"2021-11-05"},{"cvss_score":8.8,"headline":"Command injection in n/a","id":"CVE-2021-43405","kev_date_added":null,"published":"2021-11-05"},{"cvss_score":8.8,"headline":"Other in n/a","id":"CVE-2021-43406","kev_date_added":null,"published":"2021-11-05"},{"cvss_score":8.8,"headline":"Command injection in n/a","id":"CVE-2019-16964","kev_date_added":null,"published":"2019-10-21"},{"cvss_score":8.8,"headline":"SQL injection in n/a","id":"CVE-2019-16980","kev_date_added":null,"published":"2019-10-21"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Remote attackers can create arbitrary folders in FusionPBX via directory traversal in the folder creation script.","url":"https://insights.sbomify.com/CVE-2020-21056/"}