{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-8870 exists.","fix":"No fix has been published for CVE-2016-8870 yet. Limit exposure of the affected software until one is available.","what":"CVE-2016-8870 is a high-severity missing authorization vulnerability in Joomla Joomla\\!, published on 4 Nov 2016. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2016-8870 and fix it if it is affected.\n\nWhat it is: CVE-2016-8870 is a high-severity missing authorization vulnerability in Joomla Joomla\\!, published on 4 Nov 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-8870 exists.\n\nAffected product: Joomla Joomla\\!. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2016-8870/ (Markdown: https://insights.sbomify.com/CVE-2016-8870/index.md)","id":"CVE-2016-8870","markdown":"https://insights.sbomify.com/CVE-2016-8870/index.md","name":"CVE-2016-8870","record":{"aliases":["GHSA-f3v8-7jfc-xgvg"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["privilege_escalation","account_takeover"],"network_reachable":"yes","non_default_config":true,"product_category":"Joomla CMS","requires_auth":"none","summary":"Attackers can create user accounts in Joomla even when registration is disabled, bypassing security controls to gain unauthorized access.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"joomla\\!","vendor":"joomla"}],"cvss":{"score":8.1,"severity":"high","source":"nvd","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"The register method in the UsersModelRegistration class in controllers/user.php in the Users component in Joomla! before 3.6.4, when registration has been disabled, allows remote attackers to create user accounts by leveraging failure to check the Allow User Registration configuration setting.","ecosystems":[],"exploits":{"exploitdb":1,"first_seen":"2016-10-25","github_poc":1,"max_poc_stars":0,"metasploit":1,"nuclei":0,"refs":[{"date":"2016-10-25","kind":"metasploit","ref":"auxiliary/admin/http/joomla_registration_privesc","stars":null,"title":"Joomla Account Creation and Privilege Escalation"},{"date":"2016-10-27","kind":"exploitdb","ref":"40637","stars":null,"title":"Joomla! 3.4.4 \u003c 3.6.4 - Account Creation / Privilege Escalation"},{"date":"2019-01-11T21:08:27Z","kind":"github_poc","ref":"https://github.com/cved-sources/cve-2016-8870","stars":0,"title":"cve-2016-8870"}],"tier":"weaponised"},"has_fix":false,"headline":"Missing authorization in n/a","id":"CVE-2016-8870","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"joomla:joomla\\!","products":["joomla:joomla\\!"],"type":"missing_authorization","year":"2016"},"n_packages":0,"n_references":9,"next":{"headline":"Information disclosure in n/a","id":"CVE-2016-8871"},"packages":[],"prev":{"headline":"Privilege escalation in n/a","id":"CVE-2016-8869"},"products":["n/a"],"published":"2016-11-04","related":[{"cvss_score":9.8,"headline":"PHPMailer Command Injection","id":"CVE-2016-10033","kev_date_added":"2025-07-07","published":"2016-12-30"},{"cvss_score":5.3,"headline":"Joomla! Improper Access Control","id":"CVE-2023-23752","kev_date_added":"2024-01-08","published":"2023-02-16"},{"cvss_score":9.8,"headline":"Joomla! Core - [20260518] - Transport encryption downgrade for password and username reset links","id":"CVE-2026-48902","kev_date_added":null,"published":"2026-05-26"},{"cvss_score":9.8,"headline":"[20250401] - Joomla Framework - SQL injection vulnerability in quoteNameStr method of Database package","id":"CVE-2025-25226","kev_date_added":null,"published":"2025-04-08"},{"cvss_score":9.8,"headline":"[20220303] - Core - User row are not bound to a authentication mechanism","id":"CVE-2022-23795","kev_date_added":null,"published":"2022-03-30"},{"cvss_score":9.8,"headline":"[20220305] - Core - Inadequate filtering on the selected Ids","id":"CVE-2022-23797","kev_date_added":null,"published":"2022-03-30"},{"cvss_score":9.8,"headline":"[20220307] - Core - Variable Tampering on JInput $_REQUEST data","id":"CVE-2022-23799","kev_date_added":null,"published":"2022-03-30"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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)"},{"class":"attribution","licence":"BSD-3-Clause","name":"Metasploit"},{"class":"attribution","licence":"GPL-2.0-or-later","name":"Exploit-DB"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-06","vendors":["n/a"]},"summary":"Attackers can create user accounts in Joomla even when registration is disabled, bypassing security controls to gain unauthorized access.","url":"https://insights.sbomify.com/CVE-2016-8870/"}