{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2016-9462 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2016-9462 yet. Limit exposure of the affected software until one is available.","what":"CVE-2016-9462 is a medium-severity missing authorization vulnerability in Nextcloud Nextcloud Server, published on 28 Mar 2017. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2016-9462 and fix it if it is affected.\n\nWhat it is: CVE-2016-9462 is a medium-severity missing authorization vulnerability in Nextcloud Nextcloud Server, published on 28 Mar 2017. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2016-9462 in the wild and no public exploit code.\n\nAffected product: Nextcloud Nextcloud Server. 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-2016-9462/ (Markdown: https://insights.sbomify.com/CVE-2016-9462/index.md)","id":"CVE-2016-9462","markdown":"https://insights.sbomify.com/CVE-2016-9462/index.md","name":"CVE-2016-9462","record":{"aliases":["GHSA-xfx5-6q2x-cp8j"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Nextcloud/ownCloud Server","requires_auth":"low_privilege","summary":"Users with read-only access can restore old file versions due to missing privilege verification, allowing unauthorized data modification.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"nextcloud_server","vendor":"nextcloud"},{"product":"owncloud","vendor":"owncloud"}],"cvss":{"score":4.3,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N","version":"3.0"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"},{"id":"CWE-275","name":null}],"description":"Nextcloud Server before 9.0.52 \u0026 ownCloud Server before 9.0.4 are not properly verifying restore privileges when restoring a file. The restore capability of Nextcloud/ownCloud was not verifying whether a user has only read-only access to a share. Thus a user with read-only access was able to restore old versions.","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":"Missing authorization in Nextcloud Server \u0026 ownCloud Server Nextcloud Server before 9.0.52 \u0026 ownCloud Server before 9.0.4","id":"CVE-2016-9462","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"nextcloud:nextcloud_server","products":["nextcloud:nextcloud_server","owncloud:owncloud"],"type":"missing_authorization","year":"2016"},"n_packages":0,"n_references":9,"next":{"headline":"Auth bypass in Nextcloud Server \u0026 ownCloud Server Nextcloud Server before 9.0.54 and 10.0.1 \u0026 ownCloud Server before 9.1.2, 9.0.6, and 8.2.9","id":"CVE-2016-9463"},"packages":[],"prev":{"headline":"Missing authorization in Nextcloud Server \u0026 ownCloud Server Nextcloud Server before 9.0.52 \u0026 ownCloud Server before 9.0.4","id":"CVE-2016-9461"},"products":["Nextcloud Server \u0026 ownCloud Server Nextcloud Server before 9.0.52 \u0026 ownCloud Server before 9.0.4"],"published":"2017-03-28","related":[{"cvss_score":9.3,"headline":"Preview generation used third-party library not suited for user-generated content in Nextcloud server","id":"CVE-2021-32802","kev_date_added":null,"published":"2021-09-07"},{"cvss_score":9.1,"headline":"Scope of workflow operations is not validated in nextcloud server","id":"CVE-2023-26482","kev_date_added":null,"published":"2023-03-30"},{"cvss_score":8.8,"headline":"Auth bypass in Nextcloud Server","id":"CVE-2018-3775","kev_date_added":null,"published":"2018-08-12"},{"cvss_score":8.7,"headline":"Nextcloud Server password reset endpoint is not brute force protected","id":"CVE-2023-35172","kev_date_added":null,"published":"2023-06-23"},{"cvss_score":8.7,"headline":"Nextcloud Server's brute force protection allows someone to send more requests than intended","id":"CVE-2023-32320","kev_date_added":null,"published":"2023-06-22"},{"cvss_score":8.6,"headline":"Trusted servers exchange can be triggered by attacker","id":"CVE-2021-32656","kev_date_added":null,"published":"2021-06-01"},{"cvss_score":8.5,"headline":"Nextcloud Server users can make external storage mount points inaccessible for other users","id":"CVE-2023-48239","kev_date_added":null,"published":"2023-11-21"}],"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":"2024-08-06","vendors":["n/a"]},"summary":"Users with read-only access can restore old file versions due to missing privilege verification, allowing unauthorized data modification.","url":"https://insights.sbomify.com/CVE-2016-9462/"}