{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-56126 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-56126 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-56126 is a medium-severity cross-site scripting vulnerability in Netgate pfSense CE, published on 3 Sep 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-2026-56126 and fix it if it is affected.\n\nWhat it is: CVE-2026-56126 is a medium-severity cross-site scripting vulnerability in Netgate pfSense CE, published on 3 Sep 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-2026-56126 in the wild and no public exploit code.\n\nAffected product: Netgate pfSense CE. 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-2026-56126/ (Markdown: https://insights.sbomify.com/CVE-2026-56126/index.md)","id":"CVE-2026-56126","markdown":"https://insights.sbomify.com/CVE-2026-56126/index.md","name":"CVE-2026-56126","record":{"aliases":["GHSA-2356-p4rp-xj6q"],"analysis":{"component_type":"network_device","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"pfSense firewall","requires_auth":"low_privilege","summary":"Authenticated users can inject JavaScript into pfSense monitoring pages, executing code in other users' browsers to potentially hijack sessions.","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: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":"pfSense Plus before 26.07 and CE before 2.9.0 allow authenticated users with the Status: Monitoring privilege to inject arbitrary JavaScript via graph configuration parameters in /status_monitoring.php. Multiple POST parameters including graph-left, graph-right, time-period, resolution, start-date, end-date, start-time, end-time, graph-type, invert, and refresh-interval are concatenated and written to the global pfSense XML configuration without sanitization, then echoed unsanitized into a JavaScript string context on page render. Because the setting is stored in the global configuration, the payload executes in the browser of every user who visits the Status: Monitoring 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":"pfSense Plus \u003c 26.07 / CE \u003c 2.9.0 Stored XSS via status_monitoring.php","id":"CVE-2026-56126","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"pfSense Plus \u003c 26.07 / CE \u003c 2.9.0 Stored XSS via firewall_rules_edit.php","id":"CVE-2026-56127"},"packages":[],"prev":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2026-56125"},"products":["pfSense CE","pfSense Plus"],"published":"2026-09-03","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":"2026-10-01","vendors":["Netgate"]},"summary":"Authenticated users can inject JavaScript into pfSense monitoring pages, executing code in other users' browsers to potentially hijack sessions.","url":"https://insights.sbomify.com/CVE-2026-56126/"}