{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2018-8927 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2018-8927 yet. Limit exposure of the affected software until one is available.","what":"CVE-2018-8927 is a medium-severity missing authorization vulnerability in Synology Calendar, published on 14 Jun 2018. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-8927 and fix it if it is affected.\n\nWhat it is: CVE-2018-8927 is a medium-severity missing authorization vulnerability in Synology Calendar, published on 14 Jun 2018. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-8927 in the wild and no public exploit code.\n\nAffected product: Synology Calendar. 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-2018-8927/ (Markdown: https://insights.sbomify.com/CVE-2018-8927/index.md)","id":"CVE-2018-8927","markdown":"https://insights.sbomify.com/CVE-2018-8927/index.md","name":"CVE-2018-8927","record":{"aliases":["GHSA-pc82-888m-pq3g"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Synology Calendar","requires_auth":"low_privilege","summary":"Authenticated users can create arbitrary calendar events by manipulating parameters, requiring an upgrade to Synology Calendar.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"synology","cpe":[{"product":"calendar","vendor":"synology"}],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","version":"3.0"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"Improper authorization vulnerability in SYNO.Cal.Event in Calendar before 2.1.2-0511 allows remote authenticated users to create arbitrary events via the (1) cal_id or (2) original_cal_id parameter.","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":"Missing authorization in Calendar","id":"CVE-2018-8927","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2018"},"n_packages":0,"n_references":1,"next":{"headline":"Cross-site scripting in CardDAV Server","id":"CVE-2018-8928"},"packages":[],"prev":{"headline":"Privilege escalation in Photo Station","id":"CVE-2018-8926"},"products":["Calendar"],"published":"2018-06-14","related":[{"cvss_score":7.3,"headline":"Command injection in Calendar","id":"CVE-2019-11829","kev_date_added":null,"published":"2019-06-30"},{"cvss_score":6.5,"headline":"Cross-site request forgery in Synology Calendar","id":"CVE-2022-22686","kev_date_added":null,"published":"2022-07-26"},{"cvss_score":6.5,"headline":"Cross-site scripting in Synology Calendar","id":"CVE-2022-22682","kev_date_added":null,"published":"2022-07-12"},{"cvss_score":6.5,"headline":"Cross-site scripting in Calendar","id":"CVE-2019-11825","kev_date_added":null,"published":"2019-06-30"},{"cvss_score":6.5,"headline":"Cross-site scripting in Calendar","id":"CVE-2018-8915","kev_date_added":null,"published":"2018-05-10"},{"cvss_score":6.5,"headline":"Missing authorization in Synology Calendar","id":"CVE-2017-15891","kev_date_added":null,"published":"2017-12-08"},{"cvss_score":5.8,"headline":"Hardcoded credentials in Synology Calendar","id":"CVE-2021-34812","kev_date_added":null,"published":"2021-06-18"}],"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-09-16","vendors":["Synology"]},"summary":"Authenticated users can create arbitrary calendar events by manipulating parameters, requiring an upgrade to Synology Calendar.","url":"https://insights.sbomify.com/CVE-2018-8927/"}