{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-28845 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-28845 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-28845 is a low-severity vulnerability in nextcloud security-advisories, published on 31 Mar 2023. 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-2023-28845 and fix it if it is affected.\n\nWhat it is: CVE-2023-28845 is a low-severity vulnerability in nextcloud security-advisories, published on 31 Mar 2023. 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-2023-28845 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-2023-28845/ (Markdown: https://insights.sbomify.com/CVE-2023-28845/index.md)","id":"CVE-2023-28845","markdown":"https://insights.sbomify.com/CVE-2023-28845/index.md","name":"CVE-2023-28845","record":{"aliases":["GHSA-3m6r-479j-4chf"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Nextcloud Talk app","requires_auth":"low_privilege","summary":"Attackers can view member lists of private Nextcloud Talk conversations without being members, exposing user identities.","user_interaction":"required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"talk","vendor":"nextcloud"}],"cvss":{"score":3.5,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-284","name":"Improper Access Control"}],"description":"Nextcloud talk is a video \u0026 audio conferencing app for Nextcloud. In affected versions the talk app does not properly filter access to a conversations member list. As a result an attacker could use this vulnerability to gain information about the members of a Talk conversation, even if they themselves are not members. It is recommended that the Nextcloud Talk is upgraded to 14.0.9 or 15.0.4. There are no known workarounds for this vulnerability.","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":"Chat room membership disclosed via autocompletion in Nextcloud talk","id":"CVE-2023-28845","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"information_disclosure","year":"2023"},"n_packages":0,"n_references":2,"next":{"headline":"Denial of Service in unpoly-rails","id":"CVE-2023-28846"},"packages":[],"prev":{"headline":"User without download rights can download older version of that file in nextcloud server","id":"CVE-2023-28844"},"products":["security-advisories"],"published":"2023-03-31","related":[{"cvss_score":9.9,"headline":"Code injection in Nextcloud Talk","id":"CVE-2020-8180","kev_date_added":null,"published":"2020-06-08"},{"cvss_score":8.1,"headline":"Nextcloud Talk not properly disassociating users from chats after account deletion","id":"CVE-2021-32689","kev_date_added":null,"published":"2021-07-12"},{"cvss_score":7.2,"headline":"Path traversal allows tricking the Talk Android app into writing files into it's root directory","id":"CVE-2023-39957","kev_date_added":null,"published":"2023-08-10"},{"cvss_score":6.5,"headline":"Session Fixation in Nextcloud Talk","id":"CVE-2021-32676","kev_date_added":null,"published":"2021-06-16"},{"cvss_score":6.4,"headline":"XSS in Talk","id":"CVE-2021-39222","kev_date_added":null,"published":"2021-11-15"},{"cvss_score":5.4,"headline":"Cross-site scripting in nextcloud/talk","id":"CVE-2018-3781","kev_date_added":null,"published":"2018-08-13"},{"cvss_score":4.7,"headline":"Geolocation preview links can be set to arbitrary links in nextcloud talk","id":"CVE-2021-41180","kev_date_added":null,"published":"2022-03-08"}],"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":"2025-02-11","vendors":["nextcloud"]},"summary":"Attackers can view member lists of private Nextcloud Talk conversations without being members, exposing user identities.","url":"https://insights.sbomify.com/CVE-2023-28845/"}