{"answers":{"affected":"2 open source packages ship an affected version, including express-fileupload. It affects 2 products.","exploited":"There is no known exploitation of CVE-2020-7699 in the wild and no public exploit code.","fix":"Upgrade express-fileupload to 1.1.9 or later.","what":"CVE-2020-7699 is a high-severity code injection vulnerability in express-fileupload, published on 30 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-7699 and fix it if it is affected.\n\nWhat it is: CVE-2020-7699 is a high-severity code injection vulnerability in express-fileupload, published on 30 Jul 2020. 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-2020-7699 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- express-fileupload (npm): affected all versions; fixed in 1.1.9\n- express-fileupload (npm): affected all versions; fixed in 1.1.9\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-2020-7699/ (Markdown: https://insights.sbomify.com/CVE-2020-7699/index.md)","id":"CVE-2020-7699","markdown":"https://insights.sbomify.com/CVE-2020-7699/index.md","name":"CVE-2020-7699","record":{"aliases":["GHSA-9wcg-jrwf-8gg7","SNYK-JS-EXPRESSFILEUPLOAD-595969"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Node.js file upload library","requires_auth":"none","summary":"Attackers can achieve arbitrary code execution or denial of service via prototype pollution in express-fileupload when parseNested is enabled.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"express-fileupload","vendor":"express-fileupload_project"},{"product":"max_data","vendor":"netapp"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-1321","name":"Improperly Controlled Modification of Object Prototype Attributes"}],"description":"This affects the package express-fileupload before 1.1.8. If the parseNested option is enabled, sending a corrupt HTTP request can lead to denial of service or arbitrary code execution.","ecosystems":["npm"],"exploits":{"exploitdb":0,"first_seen":"2021-11-14","github_poc":1,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2021-11-14T14:07:17Z","kind":"github_poc","ref":"https://github.com/zodiac12-pub/CVE-2020-7699_reproduce","stars":0,"title":"针对 CVE-2020-7699 的复现，软件安全原理课程大作业"}],"tier":"poc_unverified"},"has_fix":true,"headline":"Prototype Pollution","id":"CVE-2020-7699","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"code_injection","year":"2020"},"n_packages":2,"n_references":3,"next":{"headline":"Prototype Pollution","id":"CVE-2020-7700"},"packages":[{"ecosystem":"npm","fixed":["1.1.9"],"introduced":["0"],"last_affected":[],"package":"express-fileupload","purl":null,"source":"GHSA-9wcg-jrwf-8gg7"},{"ecosystem":"npm","fixed":["1.1.9"],"introduced":["0"],"last_affected":[],"package":"express-fileupload","purl":"pkg:npm/express-fileupload","source":"GHSA-9wcg-jrwf-8gg7"}],"prev":{"headline":"Command Injection","id":"CVE-2020-7698"},"products":["express-fileupload"],"published":"2020-07-30","related":[{"cvss_score":9.8,"headline":"File upload in n/a","id":"CVE-2022-27140","kev_date_added":null,"published":"2022-04-12"},{"cvss_score":7.5,"headline":"Express-FileUpload Arbitrary File Overwrite","id":"CVE-2022-27261","kev_date_added":null,"published":"2022-04-12"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-17","vendors":["n/a"]},"summary":"Attackers can achieve arbitrary code execution or denial of service via prototype pollution in express-fileupload when parseNested is enabled.","url":"https://insights.sbomify.com/CVE-2020-7699/"}