Critical Actively exploited
CVE-2026-48939
iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability
What this means
- Weakness
- Upload accepts a dangerous file type, often one the server will execute.
- Likelihood
- Exploitation is not hypothetical: CISA has observed it in the wild.
What to doTop priority: CISA sets the remediation deadline at 13 July 2026.
Read automatically from the CVSS vector, the weakness type (CWE) and the EPSS score. The technical description above remains the one published by NIST.