{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2023-39957 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2023-39957 yet. Limit exposure of the affected software until one is available.","what":"CVE-2023-39957 is a high-severity path traversal vulnerability in nextcloud security-advisories, published on 10 Aug 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-2023-39957 and fix it if it is affected.\n\nWhat it is: CVE-2023-39957 is a high-severity path traversal vulnerability in nextcloud security-advisories, published on 10 Aug 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-2023-39957 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-2023-39957/ (Markdown: https://insights.sbomify.com/CVE-2023-39957/index.md)","id":"CVE-2023-39957","markdown":"https://insights.sbomify.com/CVE-2023-39957/index.md","name":"CVE-2023-39957","record":{"aliases":["GHSA-36f7-93f3-mcfj"],"analysis":{"component_type":"mobile_application","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Nextcloud Talk Android","requires_auth":"high_privilege","summary":"Malicious apps can trick Nextcloud Talk Android into writing files outside its cache directory, potentially compromising the app's root directory.","user_interaction":"required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"talk","vendor":"nextcloud"}],"cvss":{"score":7.2,"severity":"high","source":"cna","vector":"CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"Nextcloud Talk Android allows users to place video and audio calls through Nextcloud on Android. Prior to version 17.0.0, an unprotected intend allowed malicious third party apps to trick the Talk Android app into writing files outside of its intended cache directory. Nextcloud Talk Android version 17.0.0 has a patch for this issue. No known workarounds are available.","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":"Path traversal allows tricking the Talk Android app into writing files into it's root directory","id":"CVE-2023-39957","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2023"},"n_packages":0,"n_references":3,"next":{"headline":"Missing brute force protection on password reset token OAuth2 API controller","id":"CVE-2023-39958"},"packages":[],"prev":{"headline":"Electron: Out-of-package code execution when launched with arbitrary cwd","id":"CVE-2023-39956"},"products":["security-advisories"],"published":"2023-08-10","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":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":"total"},"state":"PUBLISHED","updated":"2024-10-04","vendors":["nextcloud"]},"summary":"Malicious apps can trick Nextcloud Talk Android into writing files outside its cache directory, potentially compromising the app's root directory.","url":"https://insights.sbomify.com/CVE-2023-39957/"}