{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-28428 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-28428 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-28428 is a critical vulnerability in n/a, published on 5 Apr 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-28428 and fix it if it is affected.\n\nWhat it is: CVE-2021-28428 is a critical vulnerability in n/a, published on 5 Apr 2022. 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-2021-28428 in the wild and no public exploit code.\n\nAffected product: n/a. 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-2021-28428/ (Markdown: https://insights.sbomify.com/CVE-2021-28428/index.md)","id":"CVE-2021-28428","markdown":"https://insights.sbomify.com/CVE-2021-28428/index.md","name":"CVE-2021-28428","record":{"aliases":["GHSA-cm95-9q8x-72h6"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"HorizontCMS","requires_auth":"none","summary":"Attacker can achieve remote code execution by uploading malicious .htaccess and .hello files to bypass PHP extension filters in HorizontCMS.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"horizontcms","vendor":"horizontcms_project"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/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":"File upload vulnerability in HorizontCMS before 1.0.0-beta.3 via uploading a .htaccess and *.hello files using the Media Files upload functionality. The original file upload vulnerability (CVE-2020-27387) was remediated by restricting the PHP extensions; however, we confirmed that the filter was bypassed via uploading an arbitrary .htaccess and *.hello files in order to execute PHP code to gain RCE.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"File upload in n/a","id":"CVE-2021-28428","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"file_upload","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"Integer overflow in n/a","id":"CVE-2021-28429"},"packages":[],"prev":{"headline":"Memory corruption in n/a","id":"CVE-2021-28427"},"products":["n/a"],"published":"2022-04-05","related":[{"cvss_score":8.8,"headline":"File upload in n/a","id":"CVE-2020-28693","kev_date_added":null,"published":"2020-11-16"},{"cvss_score":8.8,"headline":"File upload in n/a","id":"CVE-2020-27387","kev_date_added":null,"published":"2020-11-05"},{"cvss_score":7.5,"headline":"Path traversal in n/a","id":"CVE-2022-25104","kev_date_added":null,"published":"2022-02-23"}],"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)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["n/a"]},"summary":"Attacker can achieve remote code execution by uploading malicious .htaccess and .hello files to bypass PHP extension filters in HorizontCMS.","url":"https://insights.sbomify.com/CVE-2021-28428/"}