{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-66551 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-66551 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-66551 is a medium-severity missing authorization vulnerability in nextcloud security-advisories, published on 5 Dec 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2025-66551 and fix it if it is affected.\n\nWhat it is: CVE-2025-66551 is a medium-severity missing authorization vulnerability in nextcloud security-advisories, published on 5 Dec 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2025-66551 in the wild and no public exploit code.\n\nAffected product: nextcloud security-advisories. 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-2025-66551/ (Markdown: https://insights.sbomify.com/CVE-2025-66551/index.md)","id":"CVE-2025-66551","markdown":"https://insights.sbomify.com/CVE-2025-66551/index.md","name":"CVE-2025-66551","record":{"aliases":["GHSA-w787-vwqp-8wr7"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Nextcloud Tables app","requires_auth":"low_privilege","summary":"A malicious user can move columns into other users' tables due to missing ownership checks, allowing unauthorized data modification.","user_interaction":"required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"tables","vendor":"nextcloud"}],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:L","version":"3.1"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"Nextcloud Tables allows you to create your own tables with individual columns. Prior to 0.8.6 and 0.9.3, a malicious user was able to create their own table and then move a column to a victims table. This vulnerability is fixed in 0.8.6 and 0.9.3.","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":"Nextcloud Tables is missing an ownership check which allows moving columns into tables of other users","id":"CVE-2025-66551","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2025"},"n_packages":0,"n_references":4,"next":{"headline":"Nextcloud Server admin_audit does not log all actions on files in groupfolders","id":"CVE-2025-66552"},"packages":[],"prev":{"headline":"Nextcloud Calendar attachments of local files are offered to downloaded","id":"CVE-2025-66550"},"products":["security-advisories"],"published":"2025-12-05","related":[{"cvss_score":8.2,"headline":"Nextcloud: SQL Injection in Column Type Parameter Allows Arbitrary SQL Execution","id":"CVE-2026-45545","kev_date_added":null,"published":"2026-06-01"},{"cvss_score":7.1,"headline":"Nextcloud: Tables app allows limited SQLi in ORDER BY with malicious sort order argument for Table Views","id":"CVE-2026-45722","kev_date_added":null,"published":"2026-06-01"},{"cvss_score":6.3,"headline":"Nextcloud Tables has an Authorization Bypass Through User-Controlled Key in Tables","id":"CVE-2024-52511","kev_date_added":null,"published":"2024-11-15"},{"cvss_score":4.3,"headline":"Nextcloud: Information Disclosure of view filter metdata via Broken Sensitive Data Masking in ViewService","id":"CVE-2026-45544","kev_date_added":null,"published":"2026-06-01"},{"cvss_score":4.3,"headline":"Nextcloud Tables app share information not limited to relevant users","id":"CVE-2025-66513","kev_date_added":null,"published":"2025-12-05"},{"cvss_score":4.3,"headline":"Nextcloud Tables app allowed users to view columns metadata information of any table","id":"CVE-2025-66553","kev_date_added":null,"published":"2025-12-05"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-12-09","vendors":["nextcloud"]},"summary":"A malicious user can move columns into other users' tables due to missing ownership checks, allowing unauthorized data modification.","url":"https://insights.sbomify.com/CVE-2025-66551/"}