{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-45420 exists.","fix":"No fix has been published for CVE-2021-45420 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-45420 is a critical vulnerability in n/a, published on 14 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2021-45420 and fix it if it is affected.\n\nWhat it is: CVE-2021-45420 is a critical vulnerability in n/a, published on 14 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-45420 exists.\n\nAffected product: n/a. 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-2021-45420/ (Markdown: https://insights.sbomify.com/CVE-2021-45420/index.md)","id":"CVE-2021-45420","markdown":"https://insights.sbomify.com/CVE-2021-45420/index.md","name":"CVE-2021-45420","record":{"aliases":["GHSA-mvgm-c55v-5wjw"],"analysis":{"component_type":"iot_embedded","fix_type":"end_of_life","impacts":["code_execution","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Emerson Dixell XWEB-500","requires_auth":"none","summary":"Unauthenticated attackers can write arbitrary files on Emerson Dixell XWEB-500 devices, leading to denial of service or remote code execution.","user_interaction":"not_required","vuln_class":"file_upload"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"dixell_xweb-500_firmware","vendor":"emerson"}],"cvss":{"score":9.8,"severity":"critical","source":"nvd","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-668","name":"Exposure of Resource to Wrong Sphere"},{"id":"CWE-306","name":"Missing Authentication for Critical Functionality"},{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"Emerson Dixell XWEB-500 products are affected by arbitrary file write vulnerability in /cgi-bin/logo_extra_upload.cgi, /cgi-bin/cal_save.cgi, and /cgi-bin/lo_utils.cgi. An attacker will be able to write any file on the target system without any kind of authentication mechanism, and this can lead to denial of service and potentially remote code execution. Note: the product has not been supported since 2018 and should be removed or replaced.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":1,"refs":[{"date":null,"kind":"nuclei","ref":"http/cves/2021/CVE-2021-45420.yaml","stars":null,"title":"Emerson Dixell XWEB-500 - Arbitrary File Write"}],"tier":"weaponised"},"has_fix":null,"headline":"File upload in n/a","id":"CVE-2021-45420","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":"Information disclosure in n/a","id":"CVE-2021-45421"},"packages":[],"prev":{"headline":"Other in n/a","id":"CVE-2021-45419"},"products":["n/a"],"published":"2022-02-14","related":[{"cvss_score":7.5,"headline":"Information disclosure in n/a","id":"CVE-2021-45421","kev_date_added":null,"published":"2022-02-14"}],"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)"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-07-09","vendors":["n/a"]},"summary":"Unauthenticated attackers can write arbitrary files on Emerson Dixell XWEB-500 devices, leading to denial of service or remote code execution.","url":"https://insights.sbomify.com/CVE-2021-45420/"}