{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-20745 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-20745 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-20745 is a high-severity command injection vulnerability in Takuya Matsuyama Inkdrop, published on 28 Jun 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-20745 and fix it if it is affected.\n\nWhat it is: CVE-2021-20745 is a high-severity command injection vulnerability in Takuya Matsuyama Inkdrop, published on 28 Jun 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-20745 in the wild and no public exploit code.\n\nAffected product: Takuya Matsuyama Inkdrop. 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-2021-20745/ (Markdown: https://insights.sbomify.com/CVE-2021-20745/index.md)","id":"CVE-2021-20745","markdown":"https://insights.sbomify.com/CVE-2021-20745/index.md","name":"CVE-2021-20745","record":{"aliases":["GHSA-fgmm-f4rh-2m84"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Inkdrop note-taking app","requires_auth":"none","summary":"Attackers can execute arbitrary OS commands on the host system by tricking users into loading malicious content in Inkdrop.","user_interaction":"required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jpcert","cpe":[{"product":"inkdrop","vendor":"inkdrop"}],"cvss":{"score":7.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"Inkdrop versions prior to v5.3.1 allows an attacker to execute arbitrary OS commands on the system where it runs by loading a file or code snippet containing an invalid iframe into Inkdrop.","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":"Command injection in Inkdrop","id":"CVE-2021-20745","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2021"},"n_packages":0,"n_references":3,"next":{"headline":"Cross-site scripting in WordPress Popular Posts","id":"CVE-2021-20746"},"packages":[],"prev":{"headline":"Cross-site scripting in EC-CUBE Category contents plugin (for EC-CUBE 3.0 series)","id":"CVE-2021-20744"},"products":["Inkdrop"],"published":"2021-06-28","related":[{"cvss_score":7.8,"headline":"Code injection in Inkdrop","id":"CVE-2023-44141","kev_date_added":null,"published":"2023-10-30"},{"cvss_score":6.1,"headline":"Code injection in n/a","id":"CVE-2022-46603","kev_date_added":null,"published":"2023-01-09"}],"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":"2024-08-03","vendors":["Takuya Matsuyama"]},"summary":"Attackers can execute arbitrary OS commands on the host system by tricking users into loading malicious content in Inkdrop.","url":"https://insights.sbomify.com/CVE-2021-20745/"}