{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-42839 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-42839 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-42839 is a high-severity vulnerability in Grand Vice info Co. webopac7, published on 15 Nov 2021. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-42839 and fix it if it is affected.\n\nWhat it is: CVE-2021-42839 is a high-severity vulnerability in Grand Vice info Co. webopac7, published on 15 Nov 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-2021-42839 in the wild and no public exploit code.\n\nAffected product: Grand Vice info Co. webopac7. 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-2021-42839/ (Markdown: https://insights.sbomify.com/CVE-2021-42839/index.md)","id":"CVE-2021-42839","markdown":"https://insights.sbomify.com/CVE-2021-42839/index.md","name":"CVE-2021-42839","record":{"aliases":["GHSA-mhvw-gjfc-ccqf"],"analysis":{"component_type":"web_application","fix_type":"no_fix_stated","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"webopac7 library system","requires_auth":"low_privilege","summary":"Remote attackers with general user permissions can upload malicious scripts to execute arbitrary code or disrupt services in webopac7.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"twcert","cpe":[{"product":"webopac","vendor":"vice"}],"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-434","name":"Unrestricted Upload of File with Dangerous Type"}],"description":"Grand Vice info Co. webopac7 file upload function fails to filter special characters. While logging in with general user’s permission, remote attackers can upload malicious script and execute arbitrary code to control the system or interrupt services.","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":"Grand Vice info Co. webopac7 - Arbitrary File Upload","id":"CVE-2021-42839","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"file_upload","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"File upload in n/a","id":"CVE-2021-42840"},"packages":[],"prev":{"headline":"Grand Vice info Co. webopac7 - Reflected XSS","id":"CVE-2021-42838"},"products":["webopac7"],"published":"2021-11-15","related":[{"cvss_score":9.8,"headline":"Grand Vice info Webopac - SQL Injection","id":"CVE-2024-11016","kev_date_added":null,"published":"2024-11-11"},{"cvss_score":9.8,"headline":"Grand Vice info Webopac - Arbitrary File Upload","id":"CVE-2024-11018","kev_date_added":null,"published":"2024-11-11"},{"cvss_score":9.8,"headline":"Grand Vice info Webopac7 - SQL Injection","id":"CVE-2024-11020","kev_date_added":null,"published":"2024-11-11"},{"cvss_score":8.8,"headline":"Grand Vice info Webopac - Arbitrary File Upload","id":"CVE-2024-11017","kev_date_added":null,"published":"2024-11-11"},{"cvss_score":6.1,"headline":"Grand Vice info Webopac7 - Reflected XSS","id":"CVE-2024-11019","kev_date_added":null,"published":"2024-11-11"},{"cvss_score":6.1,"headline":"Grand Vice info Co. webopac7 - Reflected XSS","id":"CVE-2021-42838","kev_date_added":null,"published":"2021-11-15"}],"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":"2024-09-17","vendors":["Grand Vice info Co."]},"summary":"Remote attackers with general user permissions can upload malicious scripts to execute arbitrary code or disrupt services in webopac7.","url":"https://insights.sbomify.com/CVE-2021-42839/"}