{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-1239 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-1239 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-1239 is a medium-severity cross-site scripting vulnerability in Cisco Secure Firewall Management Center, published on 13 Jan 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-1239 and fix it if it is affected.\n\nWhat it is: CVE-2021-1239 is a medium-severity cross-site scripting vulnerability in Cisco Secure Firewall Management Center, published on 13 Jan 2021. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-1239 in the wild and no public exploit code.\n\nAffected product: Cisco Secure Firewall Management Center. 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-2021-1239/ (Markdown: https://insights.sbomify.com/CVE-2021-1239/index.md)","id":"CVE-2021-1239","markdown":"https://insights.sbomify.com/CVE-2021-1239/index.md","name":"CVE-2021-1239","record":{"aliases":["GHSA-hp68-5g22-cc6m"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["code_execution","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco Firepower Management Center","requires_auth":"high_privilege","summary":"Authenticated attackers can inject malicious scripts into the Cisco FMC interface, potentially executing code or stealing data from other users.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"secure_firewall_management_center","vendor":"cisco"}],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","version":"3.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"Multiple vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface of an affected system. The vulnerabilities exist because the web-based management interface does not properly validate user-supplied input. An attacker could exploit these vulnerabilities by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.","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":"Cisco Firepower Management Center Stored Cross-Site Scripting Vulnerabilities","id":"CVE-2021-1239","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"cisco:secure_firewall_management_center","products":["cisco:secure_firewall_management_center"],"type":"xss","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Cisco Proximity Desktop for Windows DLL Hijacking Vulnerability","id":"CVE-2021-1240"},"packages":[],"prev":{"headline":"Cisco Firepower Management Center Stored Cross-Site Scripting Vulnerabilities","id":"CVE-2021-1238"},"products":["Cisco Firepower Management Center"],"published":"2021-01-13","related":[{"cvss_score":10,"headline":"Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel","id":"CVE-2026-20079","kev_date_added":"2026-09-09","published":"2026-03-04"},{"cvss_score":10,"headline":"Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management Deserialization of Untrusted Data","id":"CVE-2026-20131","kev_date_added":"2026-03-19","published":"2026-03-04"},{"cvss_score":5.3,"headline":"Cisco Secure Firewall Management Center Use of Hard-coded Password","id":"CVE-2026-20316","kev_date_added":"2026-07-29","published":"2026-07-29"},{"cvss_score":10,"headline":"Cisco Secure Firewall Management Center Software Radius Remote Code Execution Vulnerability","id":"CVE-2025-20265","kev_date_added":null,"published":"2025-08-14"},{"cvss_score":9.9,"headline":"Command injection in Cisco Firepower Management Center","id":"CVE-2024-20424","kev_date_added":null,"published":"2024-10-23"},{"cvss_score":9.9,"headline":"Missing authorization in Cisco Firepower Management Center","id":"CVE-2023-20048","kev_date_added":null,"published":"2023-11-01"},{"cvss_score":9.8,"headline":"Cisco Firepower Management Center Lightweight Directory Access Protocol Authentication Bypass Vulnerability","id":"CVE-2019-16028","kev_date_added":null,"published":"2020-09-23"}],"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":"2024-11-12","vendors":["Cisco"]},"summary":"Authenticated attackers can inject malicious scripts into the Cisco FMC interface, potentially executing code or stealing data from other users.","url":"https://insights.sbomify.com/CVE-2021-1239/"}