{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-40126 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-40126 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-40126 is a medium-severity cross-site scripting vulnerability in OutSystems Service Center, published on 17 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-2026-40126 and fix it if it is affected.\n\nWhat it is: CVE-2026-40126 is a medium-severity cross-site scripting vulnerability in OutSystems Service Center, published on 17 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-2026-40126 in the wild and no public exploit code.\n\nAffected product: OutSystems Service Center. 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-2026-40126/ (Markdown: https://insights.sbomify.com/CVE-2026-40126/index.md)","id":"CVE-2026-40126","markdown":"https://insights.sbomify.com/CVE-2026-40126/index.md","name":"CVE-2026-40126","record":{"aliases":["GHSA-wpg4-f3mj-hxh3"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["code_execution","account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"OutSystems Service Center","requires_auth":"low_privilege","summary":"A low-privileged attacker can execute arbitrary JavaScript in the victim's browser by uploading a file with a malicious filename in OutSystems Service Center.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"CERT-PL","cpe":[],"cvss":{"score":4.8,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"OutSystems Service Center is vulnerable to a DOM-based Cross-Site Scripting (XSS) attack that can be exploited by a low-privileged attacker via the upload of a file with a malicious filename containing JavaScript code. The vulnerability exists in all locations where a file can be attached and prepared for upload to the server.\n\nThis issue was fixed in OutSystems Service Center version 11.41.2","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":"DOM-based Cross-Site Scripting in OutSystems Service Center","id":"CVE-2026-40126","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Authorization Bypass Through User-Controlled Key in OutSystems Lifetime","id":"CVE-2026-40127"},"packages":[],"prev":{"headline":"Information disclosure in UDP Console","id":"CVE-2026-40118"},"products":["Service Center"],"published":"2026-08-17","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":"2026-08-17","vendors":["OutSystems"]},"summary":"A low-privileged attacker can execute arbitrary JavaScript in the victim's browser by uploading a file with a malicious filename in OutSystems Service Center.","url":"https://insights.sbomify.com/CVE-2026-40126/"}