{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44259 exists.","fix":"No fix has been published for CVE-2026-44259 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-44259 is a medium-severity cross-site scripting vulnerability in efwGrp efw4.X, published on 12 May 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-2026-44259 and fix it if it is affected.\n\nWhat it is: CVE-2026-44259 is a medium-severity cross-site scripting vulnerability in efwGrp efw4.X, published on 12 May 2026. 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-2026-44259 exists.\n\nAffected product: efwGrp efw4.X. 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-2026-44259/ (Markdown: https://insights.sbomify.com/CVE-2026-44259/index.md)","id":"CVE-2026-44259","markdown":"https://insights.sbomify.com/CVE-2026-44259/index.md","name":"CVE-2026-44259","record":{"aliases":["GHSA-hw67-p3gw-rrmj"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Enterprise Web Framework","requires_auth":"low_privilege","summary":"Attackers can execute arbitrary JavaScript in victims' browsers via stored XSS in the previewServlet, 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":[],"cvss":{"score":4.6,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-80","name":"Improper Neutralization of Script-Related HTML Tags in a Web Page"}],"description":"efw4.X is an Enterprise Framework for Web. Prior to 4.08.010, the previewServlet serves files with their detected MIME type based on file extension, without any content sanitization or security headers. Files with .html, .htm, or .svg extensions are served as text/html or image/svg+xml respectively, causing any embedded JavaScript to execute in the victim's browser within the application's origin. This vulnerability is fixed in 4.08.010.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"efw4.X: Stored XSS via previewServlet","id":"CVE-2026-44259","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"efw4.X: readonly Flag Not Enforced Server-Side","id":"CVE-2026-44260"},"packages":[],"prev":{"headline":"efw4.X: Path Traversal via Unchecked dst Parameter leads to Remote Code Execution","id":"CVE-2026-44258"},"products":["efw4.X"],"published":"2026-05-12","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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-13","vendors":["efwGrp"]},"summary":"Attackers can execute arbitrary JavaScript in victims' browsers via stored XSS in the previewServlet, potentially leading to session hijacking or data theft.","url":"https://insights.sbomify.com/CVE-2026-44259/"}