{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-25375 exists.","fix":"No fix has been published for CVE-2019-25375 yet. Limit exposure of the affected software until one is available.","what":"CVE-2019-25375 is a medium-severity cross-site scripting vulnerability in OPNsense, published on 15 Feb 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2019-25375 and fix it if it is affected.\n\nWhat it is: CVE-2019-25375 is a medium-severity cross-site scripting vulnerability in OPNsense, published on 15 Feb 2026. An attacker can exploit it over the internet without logging in, 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-2019-25375 exists.\n\nAffected product: OPNsense. 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-2019-25375/ (Markdown: https://insights.sbomify.com/CVE-2019-25375/index.md)","id":"CVE-2019-25375","markdown":"https://insights.sbomify.com/CVE-2019-25375/index.md","name":"CVE-2019-25375","record":{"aliases":["GHSA-6333-cc9f-9589"],"analysis":{"component_type":"operating_system","fix_type":"patch","impacts":["code_execution","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"OPNsense firewall","requires_auth":"none","summary":"Unauthenticated attackers can inject malicious scripts via the monit interface mailserver parameter, executing code in victim browsers.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"opnsense","vendor":"opnsense"}],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/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":"OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting crafted input to the mailserver parameter. Attackers can send POST requests to the monit interface with JavaScript payloads in the mailserver parameter to execute arbitrary code in users' browsers.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"OPNsense 19.1 Reflected XSS via monit interface","id":"CVE-2019-25375","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2019"},"n_packages":0,"n_references":4,"next":{"headline":"OPNsense 19.1 Reflected XSS via proxy endpoint","id":"CVE-2019-25376"},"packages":[],"prev":{"headline":"OPNsense 19.1 Reflected XSS via vpn_ipsec_settings.php","id":"CVE-2019-25374"},"products":["OPNsense"],"published":"2026-02-15","related":[{"cvss_score":9.8,"headline":"Auth bypass in n/a","id":"CVE-2023-27152","kev_date_added":null,"published":"2023-10-23"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2023-39001","kev_date_added":null,"published":"2023-08-09"},{"cvss_score":9.8,"headline":"Information disclosure in n/a","id":"CVE-2023-39004","kev_date_added":null,"published":"2023-08-09"},{"cvss_score":9.8,"headline":"Command injection in n/a","id":"CVE-2023-39008","kev_date_added":null,"published":"2023-08-09"},{"cvss_score":9.6,"headline":"Cross-site scripting in n/a","id":"CVE-2023-39007","kev_date_added":null,"published":"2023-08-09"},{"cvss_score":9.1,"headline":"OPNsense: RCE via XMLRPC endpoint using `opnsense.restore_config_section` method","id":"CVE-2026-44193","kev_date_added":null,"published":"2026-05-13"},{"cvss_score":9.1,"headline":"OPNsense: RCE on user managment","id":"CVE-2026-44194","kev_date_added":null,"published":"2026-05-13"}],"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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-24","vendors":["Opnsense"]},"summary":"Unauthenticated attackers can inject malicious scripts via the monit interface mailserver parameter, executing code in victim browsers.","url":"https://insights.sbomify.com/CVE-2019-25375/"}