{"answers":{"affected":"18 open source packages ship an affected version, including drupal/core, drupal and drupal/drupal. It affects 2 products.","exploited":"Yes. Attackers have exploited CVE-2020-13671 in the wild since at least 18 Jan 2022.","fix":"Upgrade drupal/core to a fixed version for your release line: 7.74, 8.8.11, 8.9.9 or 9.0.8. US federal agencies must fix it by 18 Jul 2022.","what":"CVE-2020-13671 is a high-severity vulnerability in Drupal Drupal, published on 20 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-13671 and fix it if it is affected.\n\nWhat it is: CVE-2020-13671 is a high-severity vulnerability in Drupal Drupal, published on 20 Nov 2020. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: Yes. Attackers have exploited CVE-2020-13671 in the wild since at least 18 Jan 2022.\n\nAffected packages and fixed versions:\n- drupal/core (Packagist): affected from 7.0.0; fixed in 7.74\n- drupal/core (Packagist): affected from 7.0.0; fixed in 7.74\n- drupal/core (Packagist): affected from 8.0.0; fixed in 8.8.11, 8.9.9, 9.0.8\n- drupal/core (Packagist): affected from 8.0.0; fixed in 8.8.11\n- drupal/core (Packagist): affected from 8.0.0; fixed in 8.8.11\n- drupal/core (Packagist): affected from 8.9.0; fixed in 8.9.9\n- drupal/core (Packagist): affected from 8.9.0; fixed in 8.9.9\n- drupal/core (Packagist): affected from 9.0.0; fixed in 9.0.8\n- drupal/core (Packagist): affected from 9.0.0; fixed in 9.0.8\n- drupal (Bitnami): affected from 7.0.0; fixed in 7.74.0, 8.8.11, 8.9.9, 9.0.8\n- drupal/drupal (Packagist): affected from 7.0.0; fixed in 7.74\n- drupal/drupal (Packagist): affected from 7.0.0; fixed in 7.74\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-2020-13671/ (Markdown: https://insights.sbomify.com/CVE-2020-13671/index.md)","id":"CVE-2020-13671","markdown":"https://insights.sbomify.com/CVE-2020-13671/index.md","name":"CVE-2020-13671","record":{"aliases":["BIT-drupal-2020-13671","DRUPAL-CORE-2020-012","GHSA-68jc-v27h-vhmw","UBUNTU-CVE-2020-13671"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":true,"product_category":"Drupal Core","requires_auth":"low_privilege","summary":"Attackers can upload malicious files that are executed as PHP due to improper filename sanitization in specific hosting configurations.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"drupal","cpe":[{"product":"drupal","vendor":"drupal"},{"product":"fedora","vendor":"fedoraproject"}],"cvss":{"score":8.8,"severity":"high","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-434","name":"Unrestricted Upload of File with Dangerous Type"}],"description":"Drupal core does not properly sanitize certain filenames on uploaded files, which can lead to files being interpreted as the incorrect extension and served as the wrong MIME type or executed as PHP for certain hosting configurations. This issue affects: Drupal Drupal Core 9.0 versions prior to 9.0.8, 8.9 versions prior to 8.9.9, 8.8 versions prior to 8.8.11, and 7 versions prior to 7.74.","ecosystems":["Bitnami","Packagist"],"exploits":{"exploitdb":0,"first_seen":"2026-08-22","github_poc":3,"max_poc_stars":0,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-08-22T09:28:13Z","kind":"github_poc","ref":"https://github.com/Dungsocool/CVE-2020-13671-old","stars":0,"title":"CVE-2020-13671 - Drupal RCE via File Upload Vulnerability Analysis and PoC"},{"date":"2026-08-22T09:42:24Z","kind":"github_poc","ref":"https://github.com/Dungsocool/CVE-2020-13671","stars":0,"title":"CVE-2020-13671 - Drupal RCE via File Upload Vulnerability Analysis and PoC"},{"date":"2026-09-10T07:13:41Z","kind":"github_poc","ref":"https://github.com/ivanesk315/CVE-2020-13671","stars":0,"title":null}],"tier":"exploited"},"has_fix":true,"headline":"Drupal core Un-restricted Upload of File","id":"CVE-2020-13671","indexable":true,"kev":{"dateAdded":"2022-01-18","dueDate":"2022-07-18","knownRansomwareCampaignUse":"Unknown","product":"Drupal core","requiredAction":"Apply updates per vendor instructions.","vendorProject":"Drupal","vulnerabilityName":"Drupal core Un-restricted Upload of File"},"kind":"cve","links":{"ecosystem":"Bitnami","product":"drupal:drupal","products":["drupal:drupal","fedoraproject:fedora"],"type":"file_upload","year":"2020"},"n_packages":18,"n_references":3,"next":{"headline":"Drupal core Cross-site Scripting (XSS) vulnerability","id":"CVE-2020-13672"},"packages":[{"ecosystem":"Bitnami","fixed":["7.74.0","8.8.11","8.9.9","9.0.8"],"introduced":["7.0.0","8.8.0","8.9.0","9.0.0"],"last_affected":[],"package":"drupal","purl":"pkg:bitnami/drupal","source":"BIT-drupal-2020-13671"},{"ecosystem":"Packagist","fixed":["7.74"],"introduced":["7.0.0"],"last_affected":[],"package":"drupal/core","purl":null,"source":"GHSA-68jc-v27h-vhmw"},{"ecosystem":"Packagist","fixed":["7.74"],"introduced":["7.0.0"],"last_affected":[],"package":"drupal/core","purl":"pkg:composer/drupal/core","source":"GHSA-68jc-v27h-vhmw"},{"ecosystem":"Packagist","fixed":["8.8.11","8.9.9","9.0.8"],"introduced":["8.0.0","8.9.0","9.0.0"],"last_affected":[],"package":"drupal/core","purl":"pkg:composer/drupal/core","source":"DRUPAL-CORE-2020-012"},{"ecosystem":"Packagist","fixed":["8.8.11"],"introduced":["8.0.0"],"last_affected":[],"package":"drupal/core","purl":null,"source":"GHSA-68jc-v27h-vhmw"},{"ecosystem":"Packagist","fixed":["8.8.11"],"introduced":["8.0.0"],"last_affected":[],"package":"drupal/core","purl":"pkg:composer/drupal/core","source":"GHSA-68jc-v27h-vhmw"},{"ecosystem":"Packagist","fixed":["8.9.9"],"introduced":["8.9.0"],"last_affected":[],"package":"drupal/core","purl":null,"source":"GHSA-68jc-v27h-vhmw"},{"ecosystem":"Packagist","fixed":["8.9.9"],"introduced":["8.9.0"],"last_affected":[],"package":"drupal/core","purl":"pkg:composer/drupal/core","source":"GHSA-68jc-v27h-vhmw"},{"ecosystem":"Packagist","fixed":["9.0.8"],"introduced":["9.0.0"],"last_affected":[],"package":"drupal/core","purl":null,"source":"GHSA-68jc-v27h-vhmw"},{"ecosystem":"Packagist","fixed":["9.0.8"],"introduced":["9.0.0"],"last_affected":[],"package":"drupal/core","purl":"pkg:composer/drupal/core","source":"GHSA-68jc-v27h-vhmw"},{"ecosystem":"Packagist","fixed":["7.74"],"introduced":["7.0.0"],"last_affected":[],"package":"drupal/drupal","purl":null,"source":"GHSA-68jc-v27h-vhmw"},{"ecosystem":"Packagist","fixed":["7.74"],"introduced":["7.0.0"],"last_affected":[],"package":"drupal/drupal","purl":"pkg:composer/drupal/drupal","source":"GHSA-68jc-v27h-vhmw"},{"ecosystem":"Packagist","fixed":["8.8.11"],"introduced":["8.0.0"],"last_affected":[],"package":"drupal/drupal","purl":null,"source":"GHSA-68jc-v27h-vhmw"},{"ecosystem":"Packagist","fixed":["8.8.11"],"introduced":["8.0.0"],"last_affected":[],"package":"drupal/drupal","purl":"pkg:composer/drupal/drupal","source":"GHSA-68jc-v27h-vhmw"},{"ecosystem":"Packagist","fixed":["8.9.9"],"introduced":["8.9.0"],"last_affected":[],"package":"drupal/drupal","purl":null,"source":"GHSA-68jc-v27h-vhmw"},{"ecosystem":"Packagist","fixed":["8.9.9"],"introduced":["8.9.0"],"last_affected":[],"package":"drupal/drupal","purl":"pkg:composer/drupal/drupal","source":"GHSA-68jc-v27h-vhmw"},{"ecosystem":"Packagist","fixed":["9.0.8"],"introduced":["9.0.0"],"last_affected":[],"package":"drupal/drupal","purl":null,"source":"GHSA-68jc-v27h-vhmw"},{"ecosystem":"Packagist","fixed":["9.0.8"],"introduced":["9.0.0"],"last_affected":[],"package":"drupal/drupal","purl":"pkg:composer/drupal/drupal","source":"GHSA-68jc-v27h-vhmw"}],"prev":{"headline":"Exposure of Resource to Wrong Sphere in Drupal Core","id":"CVE-2020-13670"},"products":["Drupal Core"],"published":"2020-11-20","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":8.1,"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":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"MIT","name":"Drupal","prefix":"DRUPAL"},{"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":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"total"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["Drupal"]},"summary":"Attackers can upload malicious files that are executed as PHP due to improper filename sanitization in specific hosting configurations.","url":"https://insights.sbomify.com/CVE-2020-13671/"}