{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-76873 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-76873 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-76873 is a medium-severity cross-site scripting vulnerability in Netcore NR255-V, published on 15 Sep 2026. 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-2026-76873 and fix it if it is affected.\n\nWhat it is: CVE-2026-76873 is a medium-severity cross-site scripting vulnerability in Netcore NR255-V, published on 15 Sep 2026. 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-2026-76873 in the wild and no public exploit code.\n\nAffected product: Netcore NR255-V. 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-2026-76873/ (Markdown: https://insights.sbomify.com/CVE-2026-76873/index.md)","id":"CVE-2026-76873","markdown":"https://insights.sbomify.com/CVE-2026-76873/index.md","name":"CVE-2026-76873","record":{"aliases":["GHSA-2fvm-cppx-f9c5"],"analysis":{"component_type":"network_device","fix_type":"no_fix_stated","impacts":["code_execution","security_bypass"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Netcore router","requires_auth":"none","summary":"A LAN-based attacker can inject malicious scripts via DHCP and ARP hostname fields, leading to stored XSS in the router's web interface.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Netcore NR255-V version 1.5.130703 contains a stored cross-site scripting vulnerability in the DHCP dynamic IP display and ARP bind list display components handling hostname fields. A LAN-based attacker can inject malicious script through these hostname fields, which is later rendered by network_config.js and network_security.js in the web management interface.","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":"Netcore NR255-V 1.5.130703 Stored Cross-Site Scripting via DHCP and ARP Hostname Fields","id":"CVE-2026-76873","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"PyPy pyexpat ExternalEntityParserCreate Use-After-Free","id":"CVE-2026-76875"},"packages":[],"prev":{"headline":"Netcore NR255-V 1.5.130703 Stored Cross-Site Scripting via DHCP/ACL Management Pages","id":"CVE-2026-76872"},"products":["NR255-V"],"published":"2026-09-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"partial"},"state":"PUBLISHED","updated":"2026-09-16","vendors":["Netcore"]},"summary":"A LAN-based attacker can inject malicious scripts via DHCP and ARP hostname fields, leading to stored XSS in the router's web interface.","url":"https://insights.sbomify.com/CVE-2026-76873/"}