{"answers":{"affected":"2 open source packages ship an affected version, including actionpack. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-8264 in the wild and no public exploit code.","fix":"Upgrade actionpack to 6.0.3.4 or later.","what":"CVE-2020-8264 is a medium-severity cross-site scripting vulnerability in Rubyonrails Rails, published on 6 Jan 2021. 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-2020-8264 and fix it if it is affected.\n\nWhat it is: CVE-2020-8264 is a medium-severity cross-site scripting vulnerability in Rubyonrails Rails, published on 6 Jan 2021. 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-2020-8264 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- actionpack (RubyGems): affected from 6.0.0; fixed in 6.0.3.4\n- actionpack (RubyGems): affected from 6.0.0; fixed in 6.0.3.4\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-2020-8264/ (Markdown: https://insights.sbomify.com/CVE-2020-8264/index.md)","id":"CVE-2020-8264","markdown":"https://insights.sbomify.com/CVE-2020-8264/index.md","name":"CVE-2020-8264","record":{"aliases":["DEBIAN-CVE-2020-8264","GHSA-35mm-cc6r-8fjp"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"Ruby on Rails","requires_auth":"none","summary":"An attacker can execute JavaScript in the context of a local Rails application via a crafted URL when running in development mode.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"rails","vendor":"rubyonrails"}],"cvss":{"score":6.1,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/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":"In actionpack gem \u003e= 6.0.0, a possible XSS vulnerability exists when an application is running in development mode allowing an attacker to send or embed (in another page) a specially crafted URL which can allow the attacker to execute JavaScript in the context of the local application. This vulnerability is in the Actionable Exceptions middleware.","ecosystems":["RubyGems"],"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 actionpack","id":"CVE-2020-8264","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"RubyGems","product":"rubyonrails:rails","products":["rubyonrails:rails"],"type":"xss","year":"2020"},"n_packages":2,"n_references":2,"next":{"headline":"Use after free in Node","id":"CVE-2020-8265"},"packages":[{"ecosystem":"RubyGems","fixed":["6.0.3.4"],"introduced":["6.0.0"],"last_affected":[],"package":"actionpack","purl":null,"source":"GHSA-35mm-cc6r-8fjp"},{"ecosystem":"RubyGems","fixed":["6.0.3.4"],"introduced":["6.0.0"],"last_affected":[],"package":"actionpack","purl":"pkg:gem/actionpack","source":"GHSA-35mm-cc6r-8fjp"}],"prev":{"headline":"Cross-site scripting in Pulse Connect Secure / Pulse Policy Secure","id":"CVE-2020-8263"},"products":["https://github.com/rails/rails"],"published":"2021-01-06","related":[{"cvss_score":10,"headline":"Active Record contains deserialization of arbitrary YAML","id":"CVE-2013-0277","kev_date_added":null,"published":"2013-02-13"},{"cvss_score":8.1,"headline":"SQL injection in n/a","id":"CVE-2017-17916","kev_date_added":null,"published":"2017-12-29"},{"cvss_score":8.1,"headline":"SQL injection in n/a","id":"CVE-2017-17917","kev_date_added":null,"published":"2017-12-29"},{"cvss_score":8,"headline":"Rails Active Storage has possible Path Traversal in DiskService","id":"CVE-2026-33195","kev_date_added":null,"published":"2026-03-23"},{"cvss_score":7.5,"headline":"Rails possible ReDoS vulnerability in Accept header parsing in Action Dispatch","id":"CVE-2024-26142","kev_date_added":null,"published":"2024-02-27"},{"cvss_score":7.5,"headline":"ReDoS based DoS vulnerability in Action Dispatch","id":"CVE-2023-22792","kev_date_added":null,"published":"2023-02-09"},{"cvss_score":7.5,"headline":"Denial of Service in Action Dispatch","id":"CVE-2021-22902","kev_date_added":null,"published":"2021-06-11"}],"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":"An attacker can execute JavaScript in the context of a local Rails application via a crafted URL when running in development mode.","url":"https://insights.sbomify.com/CVE-2020-8264/"}