{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-34820 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-34820 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-34820 is a medium-severity cross-site scripting vulnerability in Endian Firewall, published on 2 Apr 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-2026-34820 and fix it if it is affected.\n\nWhat it is: CVE-2026-34820 is a medium-severity cross-site scripting vulnerability in Endian Firewall, published on 2 Apr 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-34820 in the wild and no public exploit code.\n\nAffected product: Endian Firewall. 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-2026-34820/ (Markdown: https://insights.sbomify.com/CVE-2026-34820/index.md)","id":"CVE-2026-34820","markdown":"https://insights.sbomify.com/CVE-2026-34820/index.md","name":"CVE-2026-34820","record":{"aliases":["GHSA-3fmq-wjgh-4f33"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Endian Firewall","requires_auth":"low_privilege","summary":"An authenticated attacker can inject arbitrary JavaScript via the remark parameter in Endian Firewall, leading to stored XSS and potential account takeover.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[{"product":"firewall_community","vendor":"endian"}],"cvss":{"score":5.1,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/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":"Endian Firewall version 3.3.25 and prior allow stored cross-site scripting (XSS) via the remark parameter to /manage/ipsec/. An authenticated attacker can inject arbitrary JavaScript that is stored and executed when other users view the affected page.","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":"Endian Firewall /manage/ipsec/ remark Stored Cross-Site Scripting","id":"CVE-2026-34820","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Endian Firewall /manage/vpnauthentication/user/ remark Stored Cross-Site Scripting","id":"CVE-2026-34821"},"packages":[],"prev":{"headline":"Endian Firewall /cgi-bin/openvpnclient.cgi REMARK Stored Cross-Site Scripting","id":"CVE-2026-34819"},"products":["Endian Firewall"],"published":"2026-04-02","related":[{"cvss_score":8.8,"headline":"Command injection in n/a","id":"CVE-2021-27201","kev_date_added":null,"published":"2021-02-15"},{"cvss_score":8.7,"headline":"Endian Firewall /cgi-bin/logs_proxy.cgi DATE Perl Command Injection","id":"CVE-2026-34791","kev_date_added":null,"published":"2026-04-02"},{"cvss_score":8.7,"headline":"Endian Firewall /cgi-bin/logs_clamav.cgi DATE Perl Command Injection","id":"CVE-2026-34792","kev_date_added":null,"published":"2026-04-02"},{"cvss_score":8.7,"headline":"Endian Firewall /cgi-bin/logs_firewall.cgi DATE Perl Command Injection","id":"CVE-2026-34793","kev_date_added":null,"published":"2026-04-02"},{"cvss_score":8.7,"headline":"Endian Firewall /cgi-bin/logs_ids.cgi DATE Perl Command Injection","id":"CVE-2026-34794","kev_date_added":null,"published":"2026-04-02"},{"cvss_score":8.7,"headline":"Endian Firewall /cgi-bin/logs_log.cgi DATE Perl Command Injection","id":"CVE-2026-34795","kev_date_added":null,"published":"2026-04-02"},{"cvss_score":8.7,"headline":"Endian Firewall /cgi-bin/logs_openvpn.cgi DATE Perl Command Injection","id":"CVE-2026-34796","kev_date_added":null,"published":"2026-04-02"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-03","vendors":["Endian"]},"summary":"An authenticated attacker can inject arbitrary JavaScript via the remark parameter in Endian Firewall, leading to stored XSS and potential account takeover.","url":"https://insights.sbomify.com/CVE-2026-34820/"}