{"answers":{"affected":"3 open source packages ship an affected version, including joomla/archive and joomla. It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-26028 in the wild and no public exploit code.","fix":"Upgrade joomla/archive to 1.1.10 or later.","what":"CVE-2021-26028 is a medium-severity path traversal vulnerability in Joomla Joomla\\!, published on 4 Mar 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-26028 and fix it if it is affected.\n\nWhat it is: CVE-2021-26028 is a medium-severity path traversal vulnerability in Joomla Joomla\\!, published on 4 Mar 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-26028 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- joomla/archive (Packagist): affected all versions; fixed in 1.1.10\n- joomla/archive (Packagist): affected all versions; fixed in 1.1.10\n- joomla (Bitnami): affected from 3.0.0; fixed in 3.9.25\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-2021-26028/ (Markdown: https://insights.sbomify.com/CVE-2021-26028/index.md)","id":"CVE-2021-26028","markdown":"https://insights.sbomify.com/CVE-2021-26028/index.md","name":"CVE-2021-26028","record":{"aliases":["BIT-joomla-2021-26028","GHSA-vgwr-773q-7j3c"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Joomla CMS","requires_auth":"none","summary":"Attackers can write files outside intended directories via crafted zip archives, potentially leading to code execution or data modification in Joomla CMS.","user_interaction":"required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Joomla","cpe":[{"product":"joomla\\!","vendor":"joomla"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"An issue was discovered in Joomla! 3.0.0 through 3.9.24. Extracting an specifilcy crafted zip package could write files outside of the intended path.","ecosystems":["Bitnami","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":"[20210308] - Core - Path Traversal within joomla/archive zip class","id":"CVE-2021-26028","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":"joomla:joomla\\!","products":["joomla:joomla\\!"],"type":"path_traversal","year":"2021"},"n_packages":3,"n_references":1,"next":{"headline":"[20210309] - Core - Inadequate filtering of form contents could allow to overwrite the author field","id":"CVE-2021-26029"},"packages":[{"ecosystem":"Bitnami","fixed":["3.9.25"],"introduced":["3.0.0"],"last_affected":[],"package":"joomla","purl":"pkg:bitnami/joomla","source":"BIT-joomla-2021-26028"},{"ecosystem":"Packagist","fixed":["1.1.10"],"introduced":["0"],"last_affected":[],"package":"joomla/archive","purl":null,"source":"GHSA-vgwr-773q-7j3c"},{"ecosystem":"Packagist","fixed":["1.1.10"],"introduced":["0"],"last_affected":[],"package":"joomla/archive","purl":"pkg:composer/joomla/archive","source":"GHSA-vgwr-773q-7j3c"}],"prev":{"headline":"[20210307] - Core - ACL violation within com_content frontend editing","id":"CVE-2021-26027"},"products":["Joomla! CMS"],"published":"2021-03-04","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":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":"2026-02-25","vendors":["Joomla! Project"]},"summary":"Attackers can write files outside intended directories via crafted zip archives, potentially leading to code execution or data modification in Joomla CMS.","url":"https://insights.sbomify.com/CVE-2021-26028/"}