{"answers":{"affected":"6 open source packages ship an affected version, including github.com/filebrowser/filebrowser and github.com/filebrowser/filebrowser/v2. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-52902 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2025-52902 is a high-severity cross-site scripting vulnerability in filebrowser, published on 26 Jun 2025. 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-2025-52902 and fix it if it is affected.\n\nWhat it is: CVE-2025-52902 is a high-severity cross-site scripting vulnerability in filebrowser, published on 26 Jun 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-52902 exists.\n\nAffected packages and fixed versions:\n- github.com/filebrowser/filebrowser (Go): affected all versions; no fix listed\n- github.com/filebrowser/filebrowser (Go): affected all versions up to 1.11.0; no fix listed\n- github.com/filebrowser/filebrowser (Go): affected all versions up to 1.11.0; no fix listed\n- github.com/filebrowser/filebrowser/v2 (Go): affected all versions; fixed in 2.33.7\n- github.com/filebrowser/filebrowser/v2 (Go): affected all versions; fixed in 2.33.7\n- github.com/filebrowser/filebrowser/v2 (Go): affected all versions; fixed in 2.33.7\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-2025-52902/ (Markdown: https://insights.sbomify.com/CVE-2025-52902/index.md)","id":"CVE-2025-52902","markdown":"https://insights.sbomify.com/CVE-2025-52902/index.md","name":"CVE-2025-52902","record":{"aliases":["GHSA-4wx8-5gm2-2j97","GO-2025-3784"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"File Browser","requires_auth":"low_privilege","summary":"Attackers can execute arbitrary JavaScript in victims' browsers by uploading malicious Markdown files, potentially leading to session hijacking or data theft.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"filebrowser","vendor":"filebrowser"}],"cvss":{"score":7.6,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-80","name":"Improper Neutralization of Script-Related HTML Tags in a Web Page"},{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"File Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. The Markdown preview function of File Browser prior to v2.33.7 is vulnerable to Stored Cross-Site-Scripting (XSS). Any JavaScript code that is part of a Markdown file uploaded by a user will be executed by the browser. Version 2.33.7 contains a fix for the issue.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"File Browser has Stored Cross-Site Scripting vulnerability","id":"CVE-2025-52902","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"xss","year":"2025"},"n_packages":6,"n_references":2,"next":{"headline":"File Browser Allows Execution of Shell Commands That Can Spawn Other Commands","id":"CVE-2025-52903"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/filebrowser/filebrowser","purl":"pkg:golang/github.com/filebrowser/filebrowser","source":"GO-2025-3784"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.11.0"],"package":"github.com/filebrowser/filebrowser","purl":null,"source":"GHSA-4wx8-5gm2-2j97"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.11.0"],"package":"github.com/filebrowser/filebrowser","purl":"pkg:golang/github.com/filebrowser/filebrowser","source":"GHSA-4wx8-5gm2-2j97"},{"ecosystem":"Go","fixed":["2.33.7"],"introduced":["0"],"last_affected":[],"package":"github.com/filebrowser/filebrowser/v2","purl":null,"source":"GHSA-4wx8-5gm2-2j97"},{"ecosystem":"Go","fixed":["2.33.7"],"introduced":["0"],"last_affected":[],"package":"github.com/filebrowser/filebrowser/v2","purl":"pkg:golang/github.com/filebrowser/filebrowser/v2","source":"GHSA-4wx8-5gm2-2j97"},{"ecosystem":"Go","fixed":["2.33.7"],"introduced":["0"],"last_affected":[],"package":"github.com/filebrowser/filebrowser/v2","purl":"pkg:golang/github.com/filebrowser/filebrowser/v2","source":"GO-2025-3784"}],"prev":{"headline":"File Browser allows sensitive data to be transferred in URL","id":"CVE-2025-52901"},"products":["filebrowser"],"published":"2025-06-26","related":[{"cvss_score":10,"headline":"File Browser Self Registration Grants Any User Admin Access When Default Permissions Include Admin","id":"CVE-2026-32760","kev_date_added":null,"published":"2026-03-19"},{"cvss_score":9.1,"headline":"File Browser: TUS Delete Endpoint Bypasses Delete Permission Check","id":"CVE-2026-29188","kev_date_added":null,"published":"2026-03-05"},{"cvss_score":9,"headline":"Cross-site scripting in n/a","id":"CVE-2023-39612","kev_date_added":null,"published":"2023-09-16"},{"cvss_score":8.9,"headline":"FileBrowser Quantum: Stored XSS in public share page via unsanitized share metadata (text/template misuse)","id":"CVE-2026-30934","kev_date_added":null,"published":"2026-03-10"},{"cvss_score":8.8,"headline":"Cross-Site Request Forgery in Filebrowser","id":"CVE-2021-46398","kev_date_added":null,"published":"2022-02-04"},{"cvss_score":8.2,"headline":"File Browser share links remain accessible after Share/Download permissions are revoked","id":"CVE-2026-35604","kev_date_added":null,"published":"2026-04-07"},{"cvss_score":8.1,"headline":"File Browser: Proxy auth auto-provisioned users inherit Execute permission and Commands","id":"CVE-2026-35607","kev_date_added":null,"published":"2026-04-07"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-06-26","vendors":["filebrowser"]},"summary":"Attackers can execute arbitrary JavaScript in victims' browsers by uploading malicious Markdown files, potentially leading to session hijacking or data theft.","url":"https://insights.sbomify.com/CVE-2025-52902/"}