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CVE-2026-9303

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a4f3d9f61dac2816024f88a3e082aed67a6fde496bc27b7da423a0abf835d72b
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 4 assertions

{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","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","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"baseScore":5,"vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/metrics/3/cvssV2_0

{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","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","version":"3.0"},"metric_type":"cvssV3_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/metrics/2/cvssV3_0

{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","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","version":"4.0"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/metrics/0/cvssV4_0
cwe · 2 assertions

{"cweId":"CWE-352","description":"Cross-Site Request Forgery","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-862","description":"Missing Authorization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"cpes":["cpe:2.3:a:calcom:cal.diy:*:*:*:*:*:*:*:*"],"product":"cal.diy","vendor":"calcom","versions":[{"status":"affected","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"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/affected/0

Provider-owned CVSS observations

4 source assertions
{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","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","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"baseScore":5,"vectorString":"AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR","version":"2.0"},"metric_type":"cvssV2_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/metrics/3/cvssV2_0
{"metric":{"baseScore":4.3,"baseSeverity":"MEDIUM","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","version":"3.0"},"metric_type":"cvssV3_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/metrics/2/cvssV3_0
{"metric":{"baseScore":5.3,"baseSeverity":"MEDIUM","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","version":"4.0"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-352","description":"Cross-Site Request Forgery","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-862","description":"Missing Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/problemTypes/1/descriptions/0

Source references

6 source assertions
{"tags":["related"],"url":"https://gist.github.com/YLChen-007/26663d9558e15994176dc420d2e11d48"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/references/4
{"tags":["exploit"],"url":"https://gist.github.com/YLChen-007/dafada36e356bc895b09829d8ec57e49"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/references/5
{"name":"Submit #812173 | cal.com <= v4.9.4 Cross-Site Request Forgery (CWE-352)","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/812173"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/references/2
{"name":"Submit #812175 | cal.com <= v4.9.4 Cross-Site Request Forgery (CWE-352) (Duplicate)","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/812175"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/references/3
{"name":"VDB-365250 | calcom cal.diy cross-site request forgery","tags":["vdb-entry"],"url":"https://vuldb.com/vuln/365250"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/references/0
{"name":"VDB-365250 | CTI Indicators (IOB, IOC)","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/365250/cti"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b8abb2316a40a13c28e9e36040af4296408ebdfe441716f1e597fac3ae6b5abe · sha256:4a8dfa7684965130… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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