{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-18371 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-18371 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-18371 is a medium-severity cross-site scripting vulnerability in M-Files Web, published on 19 Aug 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-2026-18371 and fix it if it is affected.\n\nWhat it is: CVE-2026-18371 is a medium-severity cross-site scripting vulnerability in M-Files Web, published on 19 Aug 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-2026-18371 in the wild and no public exploit code.\n\nAffected product: M-Files Web. 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-2026-18371/ (Markdown: https://insights.sbomify.com/CVE-2026-18371/index.md)","id":"CVE-2026-18371","markdown":"https://insights.sbomify.com/CVE-2026-18371/index.md","name":"CVE-2026-18371","record":{"aliases":["GHSA-h853-8cgc-4pxc"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"M-Files Web","requires_auth":"low_privilege","summary":"An authenticated attacker can inject HTML into the M-Files Web interface, affecting content displayed to other users.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"M-Files Corporation","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:L/VA:N/SC:N/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"HTML injection vulnerability in M-Files Web before 26.8.16330.2 allows an authenticated attacker to affect web user interface contents displayed to other users.","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":"HTML injection in M-Files Web","id":"CVE-2026-18371","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"CSS injection in M-Files Web","id":"CVE-2026-18372"},"packages":[],"prev":{"headline":"Heap-based buffer overflow in entr","id":"CVE-2026-18370"},"products":["M-Files Web"],"published":"2026-08-19","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":"2026-08-20","vendors":["M-Files Corporation"]},"summary":"An authenticated attacker can inject HTML into the M-Files Web interface, affecting content displayed to other users.","url":"https://insights.sbomify.com/CVE-2026-18371/"}