{"answers":{"affected":"1 open source package ship an affected version, including joomla. It affects 1 product.","exploited":"There is no known exploitation of CVE-2020-11891 in the wild and no public exploit code.","fix":"Upgrade joomla to 3.9.17 or later.","what":"CVE-2020-11891 is a medium-severity missing authorization vulnerability in Joomla Joomla\\!, published on 21 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2020-11891 and fix it if it is affected.\n\nWhat it is: CVE-2020-11891 is a medium-severity missing authorization vulnerability in Joomla Joomla\\!, published on 21 Apr 2020. 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-2020-11891 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- joomla (Bitnami): affected from 3.8.8; fixed in 3.9.17\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-2020-11891/ (Markdown: https://insights.sbomify.com/CVE-2020-11891/index.md)","id":"CVE-2020-11891","markdown":"https://insights.sbomify.com/CVE-2020-11891/index.md","name":"CVE-2020-11891","record":{"aliases":["BIT-joomla-2020-11891","GHSA-4pgr-2c6g-3fhf"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_modify","privilege_escalation"],"network_reachable":"yes","non_default_config":false,"product_category":"Joomla CMS","requires_auth":"none","summary":"Attackers can unauthorizedly edit user groups due to incorrect ACL checks in Joomla's user component, potentially escalating privileges.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"joomla\\!","vendor":"joomla"}],"cvss":{"score":5.3,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[],"description":"An issue was discovered in Joomla! before 3.9.17. Incorrect ACL checks in the access level section of com_users allow the unauthorized editing of usergroups.","ecosystems":["Bitnami"],"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":"Missing authorization in n/a","id":"CVE-2020-11891","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"joomla:joomla\\!","products":["joomla:joomla\\!"],"type":"missing_authorization","year":"2020"},"n_packages":1,"n_references":1,"next":{"headline":"Memory corruption in n/a","id":"CVE-2020-11894"},"packages":[{"ecosystem":"Bitnami","fixed":["3.9.17"],"introduced":["3.8.8"],"last_affected":[],"package":"joomla","purl":"pkg:bitnami/joomla","source":"BIT-joomla-2020-11891"}],"prev":{"headline":"Missing authorization in n/a","id":"CVE-2020-11890"},"products":["n/a"],"published":"2020-04-21","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":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":"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 unauthorizedly edit user groups due to incorrect ACL checks in Joomla's user component, potentially escalating privileges.","url":"https://insights.sbomify.com/CVE-2020-11891/"}