{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53940 exists.","fix":"No fix has been published for CVE-2023-53940 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-53940 is a high-severity code injection vulnerability in Alfonzm Codigo Markdown Editor, published on 18 Dec 2025. 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-2023-53940 and fix it if it is affected.\n\nWhat it is: CVE-2023-53940 is a high-severity code injection vulnerability in Alfonzm Codigo Markdown Editor, published on 18 Dec 2025. 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: It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-53940 exists.\n\nAffected product: Alfonzm Codigo Markdown Editor. 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-2023-53940/ (Markdown: https://insights.sbomify.com/CVE-2023-53940/index.md)","id":"CVE-2023-53940","markdown":"https://insights.sbomify.com/CVE-2023-53940/index.md","name":"CVE-2023-53940","record":{"aliases":["GHSA-mm7x-g274-jqhp"],"analysis":{"component_type":"desktop_application","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Markdown editor","requires_auth":"none","summary":"Attackers can execute arbitrary system commands by tricking users into opening a malicious markdown file in Codigo Markdown Editor.","user_interaction":"required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.4,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"}],"description":"Codigo Markdown Editor 1.0.1 contains a code execution vulnerability that allows attackers to run arbitrary system commands by crafting a malicious markdown file. Attackers can embed a video source with an onerror event that executes shell commands through Node.js child_process module when the file is opened.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Codigo Markdown Editor 1.0.1 Electron Arbitrary Code Execution via Markdown File","id":"CVE-2023-53940","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"code_injection","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"EasyPHP Webserver 14.1 Remote Code Execution","id":"CVE-2023-53941"},"packages":[],"prev":{"headline":"TinyWebGallery v2.5 Stored Cross-Site Scripting via Folder Name Parameter","id":"CVE-2023-53939"},"products":["Codigo Markdown Editor"],"published":"2025-12-18","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-04-07","vendors":["Alfonzm"]},"summary":"Attackers can execute arbitrary system commands by tricking users into opening a malicious markdown file in Codigo Markdown Editor.","url":"https://insights.sbomify.com/CVE-2023-53940/"}