{"answers":{"affected":"2 open source packages ship an affected version, including markdown-it-toc. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-28455 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-28455 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-28455 is a high-severity cross-site scripting vulnerability in markdown-it-toc, published on 25 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-28455 and fix it if it is affected.\n\nWhat it is: CVE-2020-28455 is a high-severity cross-site scripting vulnerability in markdown-it-toc, published on 25 Jul 2022. 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-2020-28455 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- markdown-it-toc (npm): affected all versions up to 1.1.0; no fix listed\n- markdown-it-toc (npm): affected all versions up to 1.1.0; 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-2020-28455/ (Markdown: https://insights.sbomify.com/CVE-2020-28455/index.md)","id":"CVE-2020-28455","markdown":"https://insights.sbomify.com/CVE-2020-28455/index.md","name":"CVE-2020-28455","record":{"aliases":["GHSA-wfvx-fx73-3rfj"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"npm markdown-it-toc","requires_auth":"none","summary":"An attacker can inject malicious scripts via unescaped table of contents titles and headers in the markdown-it-toc library.","user_interaction":"not_required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"markdown-it-toc","vendor":"markdown-it-toc_project"}],"cvss":{"score":7.3,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:U/RC:C","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"This affects all versions of package markdown-it-toc. The title of the generated toc and the contents of the header are not escaped.","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":"Cross-site Scripting (XSS)","id":"CVE-2020-28455","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"xss","year":"2020"},"n_packages":2,"n_references":1,"next":{"headline":"Cross-site Scripting (XSS)","id":"CVE-2020-28456"},"packages":[{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":["1.1.0"],"package":"markdown-it-toc","purl":null,"source":"GHSA-wfvx-fx73-3rfj"},{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":["1.1.0"],"package":"markdown-it-toc","purl":"pkg:npm/markdown-it-toc","source":"GHSA-wfvx-fx73-3rfj"}],"prev":{"headline":"Command Injection","id":"CVE-2020-28453"},"products":["markdown-it-toc"],"published":"2022-07-25","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":"2024-09-16","vendors":["n/a"]},"summary":"An attacker can inject malicious scripts via unescaped table of contents titles and headers in the markdown-it-toc library.","url":"https://insights.sbomify.com/CVE-2020-28455/"}