{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-42330 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-42330 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-42330 is a high-severity missing authorization vulnerability in ShinHer StudyOnline System, published on 15 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-42330 and fix it if it is affected.\n\nWhat it is: CVE-2021-42330 is a high-severity missing authorization vulnerability in ShinHer StudyOnline System, published on 15 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2021-42330 in the wild and no public exploit code.\n\nAffected product: ShinHer StudyOnline System. 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-2021-42330/ (Markdown: https://insights.sbomify.com/CVE-2021-42330/index.md)","id":"CVE-2021-42330","markdown":"https://insights.sbomify.com/CVE-2021-42330/index.md","name":"CVE-2021-42330","record":{"aliases":["GHSA-xq9f-7hxc-qrqx"],"analysis":{"component_type":"web_application","fix_type":"no_fix_stated","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"StudyOnline System","requires_auth":"low_privilege","summary":"Remote attackers can access and edit other users' credentials and personal information via crafted URL parameters due to missing authority controls in the Teacher Edit function.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"twcert","cpe":[{"product":"xinhe_teaching_platform_system","vendor":"xinheinformation"}],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-285","name":"Improper Authorization"}],"description":"The “Teacher Edit” function of ShinHer StudyOnline System does not perform authority control. After logging in with user’s privilege, remote attackers can access and edit other users’ credential and personal information by crafting URL parameters.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"ShinHer Information Co., LTD. ShinHer StudyOnline System - Improper Authorization-1","id":"CVE-2021-42330","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"ShinHer Information Co., LTD. ShinHer StudyOnline System - Improper Authorization-2","id":"CVE-2021-42331"},"packages":[],"prev":{"headline":"ShinHer Information Co., LTD. ShinHer StudyOnline System - Stored XSS","id":"CVE-2021-42329"},"products":["ShinHer StudyOnline System"],"published":"2021-10-15","related":[{"cvss_score":5.4,"headline":"ShinHer Information Co., LTD. ShinHer StudyOnline System - Stored XSS","id":"CVE-2021-42329","kev_date_added":null,"published":"2021-10-15"},{"cvss_score":5.4,"headline":"ShinHer Information Co., LTD. ShinHer StudyOnline System - Improper Authorization-2","id":"CVE-2021-42331","kev_date_added":null,"published":"2021-10-15"},{"cvss_score":4.3,"headline":"ShinHer Information Co., LTD. ShinHer StudyOnline System - Improper Authorization-3","id":"CVE-2021-42332","kev_date_added":null,"published":"2021-10-15"}],"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":"2024-09-16","vendors":["ShinHer Information Co., LTD."]},"summary":"Remote attackers can access and edit other users' credentials and personal information via crafted URL parameters due to missing authority controls in the Teacher Edit function.","url":"https://insights.sbomify.com/CVE-2021-42330/"}