{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2017-0910 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2017-0910 yet. Limit exposure of the affected software until one is available.","what":"CVE-2017-0910 is a high-severity missing authorization vulnerability in Zulip Server, published on 27 Nov 2017. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2017-0910 and fix it if it is affected.\n\nWhat it is: CVE-2017-0910 is a high-severity missing authorization vulnerability in Zulip Server, published on 27 Nov 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-2017-0910 in the wild and no public exploit code.\n\nAffected product: Zulip 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-2017-0910/ (Markdown: https://insights.sbomify.com/CVE-2017-0910/index.md)","id":"CVE-2017-0910","markdown":"https://insights.sbomify.com/CVE-2017-0910/index.md","name":"CVE-2017-0910","record":{"aliases":["GHSA-6r66-34x7-46rg"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["privilege_escalation","account_takeover"],"network_reachable":"yes","non_default_config":true,"product_category":"Zulip Server","requires_auth":"low_privilege","summary":"An authorized user in one realm can create accounts in other realms on multi-realm Zulip servers, enabling unauthorized access and privilege escalation.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"hackerone","cpe":[{"product":"zulip_server","vendor":"zulip"}],"cvss":{"score":8.8,"severity":"high","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.0"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"},{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"In Zulip Server before 1.7.1, on a server with multiple realms, a vulnerability in the invitation system lets an authorized user of one realm on the server create a user account on any other realm.","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 Zulip Server","id":"CVE-2017-0910","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2017"},"n_packages":0,"n_references":2,"next":{"headline":"Auth bypass in Twitter Kit for iOS","id":"CVE-2017-0911"},"packages":[],"prev":{"headline":"private_address_check contains Incomplete List of Disallowed Inputs","id":"CVE-2017-0909"},"products":["Zulip Server"],"published":"2017-11-27","related":[{"cvss_score":9.8,"headline":"Information disclosure in n/a","id":"CVE-2019-18933","kev_date_added":null,"published":"2019-11-21"},{"cvss_score":8.8,"headline":"Code injection in n/a","id":"CVE-2020-15070","kev_date_added":null,"published":"2020-08-21"},{"cvss_score":8.2,"headline":"Zulip Authentication Backend Configuration Bypass","id":"CVE-2025-31478","kev_date_added":null,"published":"2025-04-16"},{"cvss_score":8.2,"headline":"Cross-site scripting vulnerability in Zulip Server development branch via topic tooltip","id":"CVE-2023-33186","kev_date_added":null,"published":"2023-05-30"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2024-36612","kev_date_added":null,"published":"2024-11-29"},{"cvss_score":7.5,"headline":"Privilege escalation in n/a","id":"CVE-2020-14215","kev_date_added":null,"published":"2020-08-21"}],"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":"2024-09-17","vendors":["Zulip"]},"summary":"An authorized user in one realm can create accounts in other realms on multi-realm Zulip servers, enabling unauthorized access and privilege escalation.","url":"https://insights.sbomify.com/CVE-2017-0910/"}