{"answers":{"affected":"1 open source package ship an affected version, including nextcloud. It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-28647 in the wild and no public exploit code.","fix":"Upgrade nextcloud to 4.7.0 or later.","what":"CVE-2023-28647 is a medium-severity authentication bypass vulnerability in nextcloud security-advisories, published on 30 Mar 2023. 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-2023-28647 and fix it if it is affected.\n\nWhat it is: CVE-2023-28647 is a medium-severity authentication bypass vulnerability in nextcloud security-advisories, published on 30 Mar 2023. 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-2023-28647 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- nextcloud (Bitnami): affected all versions; fixed in 4.7.0\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-2023-28647/ (Markdown: https://insights.sbomify.com/CVE-2023-28647/index.md)","id":"CVE-2023-28647","markdown":"https://insights.sbomify.com/CVE-2023-28647/index.md","name":"CVE-2023-28647","record":{"aliases":["BIT-nextcloud-2023-28647","GHSA-wjgg-2v4p-2gq6"],"analysis":{"component_type":"mobile_application","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Nextcloud iOS app","requires_auth":"low_privilege","summary":"An attacker with physical access to an unlocked device can bypass the Nextcloud iOS app pin and access user files via the iOS Files app integration.","user_interaction":"required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"nextcloud","vendor":"nextcloud"}],"cvss":{"score":4.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"},{"id":"CWE-281","name":"Improper Preservation of Permissions"}],"description":"Nextcloud iOS is an ios application used to interface with the nextcloud home cloud ecosystem. In versions prior to 4.7.0 when an attacker has physical access to an unlocked device, they may enable the integration into the iOS Files app and bypass the Nextcloud pin/password protection and gain access to a users files. It is recommended that the Nextcloud iOS app is upgraded to 4.7.0. There are no known workarounds for this vulnerability.","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":"App pin of the iOS app can be bypassed in Nextcloud iOS","id":"CVE-2023-28647","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":"auth_bypass","year":"2023"},"n_packages":1,"n_references":2,"next":{"headline":"CVE-2023-28648","id":"CVE-2023-28648"},"packages":[{"ecosystem":"Bitnami","fixed":["4.7.0"],"introduced":["0"],"last_affected":[],"package":"nextcloud","purl":"pkg:bitnami/nextcloud","source":"BIT-nextcloud-2023-28647"}],"prev":{"headline":"App lockout in nextcloud Android app can be bypassed via thirdparty apps","id":"CVE-2023-28646"},"products":["security-advisories"],"published":"2023-03-30","related":[{"cvss_score":9.8,"headline":"SQL injection in com.nextcloud.client","id":"CVE-2019-5454","kev_date_added":null,"published":"2019-07-30"},{"cvss_score":7.5,"headline":"SQL Injection in FileContentProvider (GHSL-2021-1007)","id":"CVE-2021-43863","kev_date_added":null,"published":"2022-01-25"},{"cvss_score":6.8,"headline":"Cross-site scripting in com.nextcloud.client","id":"CVE-2019-5450","kev_date_added":null,"published":"2019-07-30"},{"cvss_score":6.8,"headline":"Auth bypass in com.nextcloud.client","id":"CVE-2019-5455","kev_date_added":null,"published":"2019-07-30"},{"cvss_score":6.5,"headline":"Information disclosure in Nextcloud Android App (com.nextcloud.client)","id":"CVE-2021-22905","kev_date_added":null,"published":"2021-06-11"},{"cvss_score":6.5,"headline":"Information disclosure in Nextcloud iOS app (it.twsweb.Nextcloud)","id":"CVE-2021-22912","kev_date_added":null,"published":"2021-06-11"},{"cvss_score":6.1,"headline":"Auth bypass in Nextcloud Android","id":"CVE-2019-15615","kev_date_added":null,"published":"2020-02-04"}],"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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-02-11","vendors":["nextcloud"]},"summary":"An attacker with physical access to an unlocked device can bypass the Nextcloud iOS app pin and access user files via the iOS Files app integration.","url":"https://insights.sbomify.com/CVE-2023-28647/"}