{"answers":{"affected":"2 open source packages ship an affected version, including exceljs. It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-16459 in the wild and no public exploit code.","fix":"Upgrade exceljs to 1.6.0 or later.","what":"CVE-2018-16459 is a medium-severity cross-site scripting vulnerability in https://github.com/guyonroche exceljs, published on 6 Sep 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2018-16459 and fix it if it is affected.\n\nWhat it is: CVE-2018-16459 is a medium-severity cross-site scripting vulnerability in https://github.com/guyonroche exceljs, published on 6 Sep 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2018-16459 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- exceljs (npm): affected all versions; fixed in 1.6.0\n- exceljs (npm): affected all versions; fixed in 1.6.0\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-2018-16459/ (Markdown: https://insights.sbomify.com/CVE-2018-16459/index.md)","id":"CVE-2018-16459","markdown":"https://insights.sbomify.com/CVE-2018-16459/index.md","name":"CVE-2018-16459","record":{"aliases":["GHSA-2j2j-8rrv-264g"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript Excel library","requires_auth":"none","summary":"An attacker can inject malicious scripts into Excel cell values that execute when the worksheet is viewed in a browser.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"exceljs","vendor":"exceljs_project"}],"cvss":{"score":6.1,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"An unescaped payload in exceljs \u003cv1.6 allows a possible XSS via cell value when worksheet is displayed in browser.","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":true,"headline":"Cross-Site Scripting in exceljs","id":"CVE-2018-16459","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"xss","year":"2018"},"n_packages":2,"n_references":1,"next":{"headline":"ps Enables OS Command Injection","id":"CVE-2018-16460"},"packages":[{"ecosystem":"npm","fixed":["1.6.0"],"introduced":["0"],"last_affected":[],"package":"exceljs","purl":null,"source":"GHSA-2j2j-8rrv-264g"},{"ecosystem":"npm","fixed":["1.6.0"],"introduced":["0"],"last_affected":[],"package":"exceljs","purl":"pkg:npm/exceljs","source":"GHSA-2j2j-8rrv-264g"}],"prev":{"headline":"Cross-site request forgery in n/a","id":"CVE-2018-16458"},"products":["exceljs"],"published":"2018-09-06","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":"2024-09-17","vendors":["https://github.com/guyonroche"]},"summary":"An attacker can inject malicious scripts into Excel cell values that execute when the worksheet is viewed in a browser.","url":"https://insights.sbomify.com/CVE-2018-16459/"}