{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2026-41539 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-41539 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-41539 is a medium-severity cross-site scripting vulnerability in Qnap Qts, published on 9 Jun 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-2026-41539 and fix it if it is affected.\n\nWhat it is: CVE-2026-41539 is a medium-severity cross-site scripting vulnerability in Qnap Qts, published on 9 Jun 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: There is no known exploitation of CVE-2026-41539 in the wild and no public exploit code.\n\nAffected product: Qnap Qts. 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-2026-41539/ (Markdown: https://insights.sbomify.com/CVE-2026-41539/index.md)","id":"CVE-2026-41539","markdown":"https://insights.sbomify.com/CVE-2026-41539/index.md","name":"CVE-2026-41539","record":{"aliases":["GHSA-hc5c-8r54-29r3"],"analysis":{"component_type":"operating_system","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"QNAP NAS OS","requires_auth":"none","summary":"Remote attackers can exploit an XSS vulnerability in QNAP operating systems to bypass security mechanisms or read application data.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"qnap","cpe":[{"product":"qts","vendor":"qnap"},{"product":"quts_hero","vendor":"qnap"}],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to bypass security mechanisms or read application data.\n\nWe have already fixed the vulnerability in the following versions:\nQTS 5.2.9.3492 build 20260507 and later\nQuTS hero h5.2.9.3499 build 20260514 and later\nQuTS hero h5.3.4.3500 build 20260520 and later\nQuTS hero h6.0.0.3500 build 20260520 and later","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":"QTS, QuTS hero","id":"CVE-2026-41539","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"qnap:qts","products":["qnap:qts","qnap:quts_hero"],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Symlink creation in qsyncsrv.cgi","id":"CVE-2026-41541"},"packages":[],"prev":{"headline":"Path traversal in Lhaz","id":"CVE-2026-41530"},"products":["QTS","QuTS hero"],"published":"2026-06-09","related":[{"cvss_score":9.8,"headline":"QNAP Network-Attached Storage (NAS) Command Injection","id":"CVE-2020-2509","kev_date_added":"2022-04-11","published":"2021-04-17"},{"cvss_score":9.8,"headline":"QNAP NAS File Station Command Injection","id":"CVE-2018-19949","kev_date_added":"2022-05-24","published":"2020-10-28"},{"cvss_score":9.8,"headline":"QNAP QTS Improper Input Validation","id":"CVE-2019-7193","kev_date_added":"2022-06-08","published":"2019-12-05"},{"cvss_score":8,"headline":"QNAP NAS File Station Cross-Site Scripting","id":"CVE-2018-19943","kev_date_added":"2022-05-24","published":"2020-10-28"},{"cvss_score":6.1,"headline":"QNAP NAS File Station Cross-Site Scripting","id":"CVE-2018-19953","kev_date_added":"2022-05-24","published":"2020-10-28"},{"cvss_score":10,"headline":"QTS, QuTS hero, QuTScloud","id":"CVE-2024-32766","kev_date_added":null,"published":"2024-04-26"},{"cvss_score":10,"headline":"Command injection in n/a","id":"CVE-2017-7876","kev_date_added":null,"published":"2017-06-15"}],"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":"total"},"state":"PUBLISHED","updated":"2026-10-19","vendors":["QNAP Systems Inc."]},"summary":"Remote attackers can exploit an XSS vulnerability in QNAP operating systems to bypass security mechanisms or read application data.","url":"https://insights.sbomify.com/CVE-2026-41539/"}