{"answers":{"affected":"4 open source packages ship an affected version, including drupal/core and drupal/drupal. It affects 1 product.","exploited":"There is no known exploitation of CVE-2017-6921 in the wild and no public exploit code.","fix":"Upgrade drupal/core to 8.3.4 or later.","what":"CVE-2017-6921 is a medium-severity missing authorization vulnerability in Drupal Drupal, published on 15 Jan 2019. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2017-6921 and fix it if it is affected.\n\nWhat it is: CVE-2017-6921 is a medium-severity missing authorization vulnerability in Drupal Drupal, published on 15 Jan 2019. 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-2017-6921 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- drupal/core (Packagist): affected from 8.0; fixed in 8.3.4\n- drupal/core (Packagist): affected from 8.0; fixed in 8.3.4\n- drupal/drupal (Packagist): affected from 8.0; fixed in 8.3.4\n- drupal/drupal (Packagist): affected from 8.0; fixed in 8.3.4\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-2017-6921/ (Markdown: https://insights.sbomify.com/CVE-2017-6921/index.md)","id":"CVE-2017-6921","markdown":"https://insights.sbomify.com/CVE-2017-6921/index.md","name":"CVE-2017-6921","record":{"aliases":["GHSA-h377-287m-w2r9"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":true,"product_category":"Drupal core","requires_auth":"none","summary":"Attackers with file upload permissions can modify file resources via REST API due to improper validation in Drupal.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"drupal","cpe":[{"product":"drupal","vendor":"drupal"}],"cvss":{"score":5.9,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.0"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"In Drupal 8 prior to 8.3.4; The file REST resource does not properly validate some fields when manipulating files. A site is only affected by this if the site has the RESTful Web Services (rest) module enabled, the file REST resource is enabled and allows PATCH requests, and an attacker can get or register a user account on the site with permissions to upload files and to modify the file resource.","ecosystems":["Packagist"],"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":"File REST resource does not properly validate","id":"CVE-2017-6921","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":"drupal:drupal","products":["drupal:drupal"],"type":"missing_authorization","year":"2017"},"n_packages":4,"n_references":3,"next":{"headline":"Files uploaded by anonymous users into a private file system can be accessed by other anonymous users","id":"CVE-2017-6922"},"packages":[{"ecosystem":"Packagist","fixed":["8.3.4"],"introduced":["8.0"],"last_affected":[],"package":"drupal/core","purl":null,"source":"GHSA-h377-287m-w2r9"},{"ecosystem":"Packagist","fixed":["8.3.4"],"introduced":["8.0"],"last_affected":[],"package":"drupal/core","purl":"pkg:composer/drupal/core","source":"GHSA-h377-287m-w2r9"},{"ecosystem":"Packagist","fixed":["8.3.4"],"introduced":["8.0"],"last_affected":[],"package":"drupal/drupal","purl":null,"source":"GHSA-h377-287m-w2r9"},{"ecosystem":"Packagist","fixed":["8.3.4"],"introduced":["8.0"],"last_affected":[],"package":"drupal/drupal","purl":"pkg:composer/drupal/drupal","source":"GHSA-h377-287m-w2r9"}],"prev":{"headline":"Drupal PECL YAML parser unsafe object handling","id":"CVE-2017-6920"},"products":["Drupal Core"],"published":"2019-01-15","related":[{"cvss_score":9.8,"headline":"Drupal Core SQL Injection","id":"CVE-2026-9082","kev_date_added":"2026-05-22","published":"2026-05-20"},{"cvss_score":8.8,"headline":"Drupal core Un-restricted Upload of File","id":"CVE-2020-13671","kev_date_added":"2022-01-18","published":"2020-11-20"},{"cvss_score":8.1,"headline":"Drupal Core Remote Code Execution","id":"CVE-2019-6340","kev_date_added":"2022-03-25","published":"2019-02-21"},{"cvss_score":10,"headline":"Other in n/a","id":"CVE-2009-3352","kev_date_added":null,"published":"2009-09-24"},{"cvss_score":9.8,"headline":"Drupal core - Less critical - Gadget chain - SA-CORE-2024-006","id":"CVE-2024-55636","kev_date_added":null,"published":"2024-12-09"},{"cvss_score":9.8,"headline":"Drupal core - Moderately critical - Gadget chain - SA-CORE-2024-007","id":"CVE-2024-55637","kev_date_added":null,"published":"2024-12-09"},{"cvss_score":9.8,"headline":"Drupal core - Moderately critical - Gadget chain - SA-CORE-2024-008","id":"CVE-2024-55638","kev_date_added":null,"published":"2024-12-09"}],"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":["Drupal"]},"summary":"Attackers with file upload permissions can modify file resources via REST API due to improper validation in Drupal.","url":"https://insights.sbomify.com/CVE-2017-6921/"}