{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-5604 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-5604 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-5604 is a high-severity code injection vulnerability in Mercari, Inc. Android App 'Mercari' (Japan version), published on 9 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-2020-5604 and fix it if it is affected.\n\nWhat it is: CVE-2020-5604 is a high-severity code injection vulnerability in Mercari, Inc. Android App 'Mercari' (Japan version), published on 9 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-2020-5604 in the wild and no public exploit code.\n\nAffected product: Mercari, Inc. Android App 'Mercari' (Japan version). 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-2020-5604/ (Markdown: https://insights.sbomify.com/CVE-2020-5604/index.md)","id":"CVE-2020-5604","markdown":"https://insights.sbomify.com/CVE-2020-5604/index.md","name":"CVE-2020-5604","record":{"aliases":["GHSA-x466-xhx8-frqr"],"analysis":{"component_type":"mobile_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Mercari Android App","requires_auth":"none","summary":"Remote attackers can execute arbitrary Java methods via JavaScript in WebView using reflection, enabling code execution in the Mercari Android app.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"mercari","vendor":"mercari"}],"cvss":{"score":8.1,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[],"description":"Android App 'Mercari' (Japan version) prior to version 3.52.0 allows arbitrary method execution of a Java object by a remote attacker via a Man-In-The-Middle attack by using Java Reflection API of JavaScript code on WebView.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Code injection in Android App 'Mercari' (Japan version)","id":"CVE-2020-5604","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Path traversal in WHR-G54S","id":"CVE-2020-5605"},"packages":[],"prev":{"headline":"Denial of service in Mitsubishi Electoric FA Engineering Software","id":"CVE-2020-5603"},"products":["Android App 'Mercari' (Japan version)"],"published":"2020-07-09","related":[{"cvss_score":7.5,"headline":"Missing authorization in Android App 'Mercari (Merpay) - Marketplace and Mobile Payments App' (Japan version)","id":"CVE-2021-20835","kev_date_added":null,"published":"2021-11-24"},{"cvss_score":6.1,"headline":"Open redirect in \"Mercari\" App for Android","id":"CVE-2024-23388","kev_date_added":null,"published":"2024-01-26"}],"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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-04","vendors":["Mercari, Inc."]},"summary":"Remote attackers can execute arbitrary Java methods via JavaScript in WebView using reflection, enabling code execution in the Mercari Android app.","url":"https://insights.sbomify.com/CVE-2020-5604/"}