{"answers":{"affected":"2 open source packages ship an affected version, including lightning-server. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-7747 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2020-7747 yet. Limit exposure of the affected software until one is available.","what":"CVE-2020-7747 is a medium-severity cross-site scripting vulnerability in lightning-server, published on 20 Oct 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-7747 and fix it if it is affected.\n\nWhat it is: CVE-2020-7747 is a medium-severity cross-site scripting vulnerability in lightning-server, published on 20 Oct 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2020-7747 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- lightning-server (npm): affected all versions up to 1.3.0; no fix listed\n- lightning-server (npm): affected all versions up to 1.3.0; 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-2020-7747/ (Markdown: https://insights.sbomify.com/CVE-2020-7747/index.md)","id":"CVE-2020-7747","markdown":"https://insights.sbomify.com/CVE-2020-7747/index.md","name":"CVE-2020-7747","record":{"aliases":["GHSA-gmch-cm2p-9qw9"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Lightning Server library","requires_auth":"low_privilege","summary":"An attacker can inject malicious JavaScript into the lightning-server session controller, potentially executing code in the victim's browser.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"lightning","vendor":"lightning-viz"}],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N/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 lightning-server. It is possible to inject malicious JavaScript code as part of a session controller.","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-2020-7747","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":"xss","year":"2020"},"n_packages":2,"n_references":2,"next":{"headline":"Prototype Pollution","id":"CVE-2020-7748"},"packages":[{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":["1.3.0"],"package":"lightning-server","purl":null,"source":"GHSA-gmch-cm2p-9qw9"},{"ecosystem":"npm","fixed":[],"introduced":["0"],"last_affected":["1.3.0"],"package":"lightning-server","purl":"pkg:npm/lightning-server","source":"GHSA-gmch-cm2p-9qw9"}],"prev":{"headline":"Prototype Pollution","id":"CVE-2020-7746"},"products":["lightning-server"],"published":"2020-10-20","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 JavaScript into the lightning-server session controller, potentially executing code in the victim's browser.","url":"https://insights.sbomify.com/CVE-2020-7747/"}