{"answers":{"affected":"2 open source packages ship an affected version, including express-mock-middleware. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-7616 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-7616 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-7616 is a medium-severity code injection vulnerability in express-mock-middleware, published on 7 Apr 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-2020-7616 and fix it if it is affected.\n\nWhat it is: CVE-2020-7616 is a medium-severity code injection vulnerability in express-mock-middleware, published on 7 Apr 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-2020-7616 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- express-mock-middleware (npm): affected all versions up to 0.0.6; no fix listed\n- express-mock-middleware (npm): affected all versions up to 0.0.6; no fix listed\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-2020-7616/ (Markdown: https://insights.sbomify.com/CVE-2020-7616/index.md)","id":"CVE-2020-7616","markdown":"https://insights.sbomify.com/CVE-2020-7616/index.md","name":"CVE-2020-7616","record":{"aliases":["GHSA-v39h-qm32-8gwq"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"Node.js middleware library","requires_auth":"none","summary":"Attackers can achieve code execution via prototype pollution in express-mock-middleware if they can place malicious code in a new directory.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"express-mock-middleware","vendor":"express-mock-middleware_project"}],"cvss":{"score":5.3,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-1321","name":"Improperly Controlled Modification of Object Prototype Attributes"}],"description":"express-mock-middleware through 0.0.6 is vulnerable to Prototype Pollution. Exported functions by the package can be tricked into adding or modifying properties of the `Object.prototype`. Exploitation of this vulnerability requires creation of a new directory where an attack code can be placed which will then be exported by `express-mock-middleware`. As such, this is considered to be a low risk.","ecosystems":["npm"],"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":"Improperly Controlled Modification of Dynamically-Determined Object Attributes in express-mock-middleware","id":"CVE-2020-7616","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"code_injection","year":"2020"},"n_packages":2,"n_references":2,"next":{"headline":"Prototype Pollution","id":"CVE-2020-7617"},"packages":[{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":["0.0.6"],"package":"express-mock-middleware","purl":null,"source":"GHSA-v39h-qm32-8gwq"},{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":["0.0.6"],"package":"express-mock-middleware","purl":"pkg:npm/express-mock-middleware","source":"GHSA-v39h-qm32-8gwq"}],"prev":{"headline":"OS Command Injection in fsa","id":"CVE-2020-7615"},"products":["express-mock-middleware"],"published":"2020-04-07","related":[],"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)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can achieve code execution via prototype pollution in express-mock-middleware if they can place malicious code in a new directory.","url":"https://insights.sbomify.com/CVE-2020-7616/"}