{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-9303","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","state":"PUBLISHED","assignerShortName":"VulDB","dateReserved":"2026-05-22T17:54:39.276Z","datePublished":"2026-05-23T13:30:10.147Z","dateUpdated":"2026-05-26T18:41:50.216Z"},"containers":{"cna":{"providerMetadata":{"orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","shortName":"VulDB","dateUpdated":"2026-05-23T13:30:10.147Z"},"title":"calcom cal.diy cross-site request forgery","problemTypes":[{"descriptions":[{"type":"CWE","cweId":"CWE-352","lang":"en","description":"Cross-Site Request Forgery"}]},{"descriptions":[{"type":"CWE","cweId":"CWE-862","lang":"en","description":"Missing Authorization"}]}],"affected":[{"vendor":"calcom","product":"cal.diy","versions":[{"version":"4.9.0","status":"affected"},{"version":"4.9.1","status":"affected"},{"version":"4.9.2","status":"affected"},{"version":"4.9.3","status":"affected"},{"version":"4.9.4","status":"affected"}],"cpes":["cpe:2.3:a:calcom:cal.diy:*:*:*:*:*:*:*:*"]}],"descriptions":[{"lang":"en","value":"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."}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.3,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":4.3,"vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":4.3,"vectorString":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":5,"vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR"}}],"timeline":[{"time":"2026-05-22T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-05-22T02:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-05-22T19:59:44.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"Eric-z (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}],"references":[{"url":"https://vuldb.com/vuln/365250","name":"VDB-365250 | calcom cal.diy cross-site request forgery","tags":["vdb-entry"]},{"url":"https://vuldb.com/vuln/365250/cti","name":"VDB-365250 | CTI Indicators (IOB, IOC)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/submit/812173","name":"Submit #812173 | cal.com <= v4.9.4 Cross-Site Request Forgery (CWE-352)","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/812175","name":"Submit #812175 | cal.com <= v4.9.4 Cross-Site Request Forgery (CWE-352) (Duplicate)","tags":["third-party-advisory"]},{"url":"https://gist.github.com/YLChen-007/26663d9558e15994176dc420d2e11d48","tags":["related"]},{"url":"https://gist.github.com/YLChen-007/dafada36e356bc895b09829d8ec57e49","tags":["exploit"]}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-26T18:41:36.930930Z","id":"CVE-2026-9303","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-05-26T18:41:50.216Z"}}]}}