{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-9548 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-9548 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-9548 is a medium-severity cross-site scripting vulnerability in Synology Chat Server, published on 28 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-2026-9548 and fix it if it is affected.\n\nWhat it is: CVE-2026-9548 is a medium-severity cross-site scripting vulnerability in Synology Chat Server, published on 28 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-2026-9548 in the wild and no public exploit code.\n\nAffected product: Synology Chat Server. 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-2026-9548/ (Markdown: https://insights.sbomify.com/CVE-2026-9548/index.md)","id":"CVE-2026-9548","markdown":"https://insights.sbomify.com/CVE-2026-9548/index.md","name":"CVE-2026-9548","record":{"aliases":["GHSA-6788-84vh-frqm"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read","data_modify","denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Synology Chat Server","requires_auth":"low_privilege","summary":"Remote authenticated users can exploit Cross-site Scripting in Synology Chat Server to read or write restricted files and cause limited denial of service.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"synology","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"An improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability in extract domain in Synology Chat Server before 2.4.5-22148 allows remote authenticated users, via a UI interaction, to read or write restricted files and conduct limited denial-of-service attacks in DSM.","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":"Cross-site scripting in Synology Chat Server","id":"CVE-2026-9548","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"xss","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Fix XSS in service discovery active check output","id":"CVE-2026-9549"},"packages":[],"prev":{"headline":"SSH improper host validation","id":"CVE-2026-9547"},"products":["Synology Chat Server"],"published":"2026-08-28","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":"2026-08-28","vendors":["Synology"]},"summary":"Remote authenticated users can exploit Cross-site Scripting in Synology Chat Server to read or write restricted files and cause limited denial of service.","url":"https://insights.sbomify.com/CVE-2026-9548/"}