{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47873 exists.","fix":"No fix has been published for CVE-2021-47873 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-47873 is a medium-severity cross-site scripting vulnerability in VestaCP, published on 21 Jan 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-47873 and fix it if it is affected.\n\nWhat it is: CVE-2021-47873 is a medium-severity cross-site scripting vulnerability in VestaCP, published on 21 Jan 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47873 exists.\n\nAffected product: VestaCP. 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-2021-47873/ (Markdown: https://insights.sbomify.com/CVE-2021-47873/index.md)","id":"CVE-2021-47873","markdown":"https://insights.sbomify.com/CVE-2021-47873/index.md","name":"CVE-2021-47873","record":{"aliases":["GHSA-f955-hgxq-hv82"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"VestaCP control panel","requires_auth":"low_privilege","summary":"Attackers can inject malicious scripts via the IP interface configuration, potentially leading to code execution or account takeover in VestaCP.","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:N/AC:L/AT:N/PR:L/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":"VestaCP versions prior to 0.9.8-25 contain a cross-site scripting vulnerability in the IP interface configuration that allows attackers to inject malicious scripts. Attackers can exploit the 'v_interface' parameter by sending a crafted POST request to the add/ip/ endpoint with a stored XSS payload.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"VestaCP \u003c 0.9.8-25 - Stored Cross-Site Scripting","id":"CVE-2021-47873","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2021"},"n_packages":0,"n_references":4,"next":{"headline":"VFS for Git 1.0.21014.1 - 'GVFS.Service' Unquoted Service Path","id":"CVE-2021-47874"},"packages":[],"prev":{"headline":"SEO Panel \u003c 4.9.0 - 'order_col' Blind SQL Injection","id":"CVE-2021-47872"},"products":["VestaCP"],"published":"2026-01-21","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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-05","vendors":["VestaCP"]},"summary":"Attackers can inject malicious scripts via the IP interface configuration, potentially leading to code execution or account takeover in VestaCP.","url":"https://insights.sbomify.com/CVE-2021-47873/"}