{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-3859 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2025-3859 yet. Limit exposure of the affected software until one is available.","what":"CVE-2025-3859 is a medium-severity vulnerability in Mozilla Focus, published on 30 Apr 2025. 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-2025-3859 and fix it if it is affected.\n\nWhat it is: CVE-2025-3859 is a medium-severity vulnerability in Mozilla Focus, published on 30 Apr 2025. 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-2025-3859 in the wild and no public exploit code.\n\nAffected product: Mozilla Focus. 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-2025-3859/ (Markdown: https://insights.sbomify.com/CVE-2025-3859/index.md)","id":"CVE-2025-3859","markdown":"https://insights.sbomify.com/CVE-2025-3859/index.md","name":"CVE-2025-3859","record":{"aliases":["GHSA-4jh7-c2vv-7qf2"],"analysis":{"component_type":"mobile_application","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Firefox Focus browser","requires_auth":"none","summary":"Attackers can spoof the address bar in Firefox Focus by using long URLs that trigger truncation, misleading users about the current site.","user_interaction":"required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mozilla","cpe":[{"product":"firefox_focus","vendor":"mozilla"}],"cvss":{"score":4.3,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-601","name":"URL Redirection to Untrusted Site"},{"id":"CWE-451","name":"User Interface (UI) Misrepresentation of Critical Information"}],"description":"Websites directing users to long URLs that caused eliding to occur in the location view could leverage the truncating behavior to potentially trick users into thinking they were on a different webpage. This vulnerability was fixed in Focus 138.","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":"Firefox Focus elide URL allows address bar spoofing","id":"CVE-2025-3859","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2025"},"n_packages":0,"n_references":2,"next":{"headline":"CarDealerPress \u003c= 6.8.2505.00 - Authenticated (Contributor+) Stored Cross-Site Scripting via saleclass Parameter","id":"CVE-2025-3860"},"packages":[],"prev":{"headline":"Formality \u003c= 1.5.8 - Authenticated (Contributor+) Stored Cross-Site Scripting via align Parameter","id":"CVE-2025-3858"},"products":["Focus"],"published":"2025-04-30","related":[{"cvss_score":9.1,"headline":"Security feature bypass in Focus for iOS","id":"CVE-2024-10474","kev_date_added":null,"published":"2024-10-29"},{"cvss_score":9.1,"headline":"Security feature bypass in Firefox for Android","id":"CVE-2023-29534","kev_date_added":null,"published":"2023-06-19"},{"cvss_score":8.1,"headline":"Race condition in Focus for iOS","id":"CVE-2024-1563","kev_date_added":null,"published":"2024-02-22"},{"cvss_score":7.5,"headline":"Race condition in Focus for iOS","id":"CVE-2024-0605","kev_date_added":null,"published":"2024-01-22"},{"cvss_score":7.5,"headline":"Security feature bypass in Firefox","id":"CVE-2023-25743","kev_date_added":null,"published":"2023-06-02"},{"cvss_score":6.5,"headline":"Other in Focus for iOS","id":"CVE-2025-10290","kev_date_added":null,"published":"2025-09-16"},{"cvss_score":6.5,"headline":"Information disclosure in Firefox for Android","id":"CVE-2023-29546","kev_date_added":null,"published":"2023-06-19"}],"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":"2026-04-13","vendors":["Mozilla"]},"summary":"Attackers can spoof the address bar in Firefox Focus by using long URLs that trigger truncation, misleading users about the current site.","url":"https://insights.sbomify.com/CVE-2025-3859/"}