{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9303 exists.","fix":"No fix has been published for CVE-2026-9303 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-9303 is a medium-severity vulnerability in calcom cal.diy, published on 23 May 2026. 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-2026-9303 and fix it if it is affected.\n\nWhat it is: CVE-2026-9303 is a medium-severity vulnerability in calcom cal.diy, published on 23 May 2026. An attacker can exploit it over the internet without logging in, 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-2026-9303 exists.\n\nAffected product: calcom cal.diy. 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-2026-9303/ (Markdown: https://insights.sbomify.com/CVE-2026-9303/index.md)","id":"CVE-2026-9303","markdown":"https://insights.sbomify.com/CVE-2026-9303/index.md","name":"CVE-2026-9303","record":{"aliases":["GHSA-m2vm-mcmh-jrc7"],"analysis":{"component_type":"web_application","fix_type":"no_fix_stated","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Cal.com scheduling app","requires_auth":"none","summary":"Attackers can perform unauthorized actions on behalf of authenticated users in Cal.com due to missing CSRF protections.","user_interaction":"required","vuln_class":"csrf"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"},{"id":"CWE-352","name":"Cross-Site Request Forgery"}],"description":"A vulnerability was identified in calcom cal.diy up to 4.9.4. Impacted is an unknown function. The manipulation leads to cross-site request forgery. It is possible to initiate the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":null,"headline":"calcom cal.diy cross-site request forgery","id":"CVE-2026-9303","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"csrf","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"calcom cal.diy Logo API route.ts validateUrlForSSRF server-side request forgery","id":"CVE-2026-9304"},"packages":[],"prev":{"headline":"546669204 vps-inventory-monitoring VpsTest Console VpsTest.php eval code injection","id":"CVE-2026-9302"},"products":["cal.diy"],"published":"2026-05-23","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":"2026-05-26","vendors":["calcom"]},"summary":"Attackers can perform unauthorized actions on behalf of authenticated users in Cal.com due to missing CSRF protections.","url":"https://insights.sbomify.com/CVE-2026-9303/"}