{"answers":{"affected":"2 open source packages ship an affected version, including lazysizes. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-7642 in the wild and no public exploit code.","fix":"Upgrade lazysizes to 5.2.1 or later.","what":"CVE-2020-7642 is a medium-severity cross-site scripting vulnerability in lazysizes, published on 22 Apr 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-2020-7642 and fix it if it is affected.\n\nWhat it is: CVE-2020-7642 is a medium-severity cross-site scripting vulnerability in lazysizes, published on 22 Apr 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-2020-7642 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- lazysizes (npm): affected all versions; fixed in 5.2.1\n- lazysizes (npm): affected all versions; fixed in 5.2.1\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-2020-7642/ (Markdown: https://insights.sbomify.com/CVE-2020-7642/index.md)","id":"CVE-2020-7642","markdown":"https://insights.sbomify.com/CVE-2020-7642/index.md","name":"CVE-2020-7642","record":{"aliases":["GHSA-hg2p-2cvq-4ppv","SNYK-JS-LAZYSIZES-567144"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"JavaScript lazy loading library","requires_auth":"low_privilege","summary":"Attackers can inject malicious JavaScript via unsanitized video embed attributes in the lazysizes library, leading to code execution in the victim's browser.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"snyk","cpe":[{"product":"lazysizes","vendor":"lazysizes_project"}],"cvss":{"score":5.4,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"lazysizes through 5.2.0 allows execution of malicious JavaScript. The following attributes are not sanitized by the video-embed plugin: data-vimeo, data-vimeoparams, data-youtube and data-ytparams which can be abused to inject malicious JavaScript.","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 lazysizes","id":"CVE-2020-7642","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 in paypal-adaptive","id":"CVE-2020-7643"},"packages":[{"ecosystem":"npm","fixed":["5.2.1"],"introduced":["0"],"last_affected":[],"package":"lazysizes","purl":null,"source":"GHSA-hg2p-2cvq-4ppv"},{"ecosystem":"npm","fixed":["5.2.1"],"introduced":["0"],"last_affected":[],"package":"lazysizes","purl":"pkg:npm/lazysizes","source":"GHSA-hg2p-2cvq-4ppv"}],"prev":{"headline":"Prototype Pollution","id":"CVE-2020-7641"},"products":["lazysizes"],"published":"2020-04-22","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":"2024-08-04","vendors":["n/a"]},"summary":"Attackers can inject malicious JavaScript via unsanitized video embed attributes in the lazysizes library, leading to code execution in the victim's browser.","url":"https://insights.sbomify.com/CVE-2020-7642/"}