Risk Letters

Exploited vulnerability

CVE-2026-48939

TLP:CLEAR

iCagenda Unrestricted Upload of File with Dangerous Type Vulnerability

iCagenda contains an unrestricted upload of file with dangerous type vulnerability that allows the upload of arbitrary files in the file attachment feature, ultimately resulting in PHP code upload and execution.

Facts

  • Vendor: iCagenda
  • Product: iCagenda
  • CVSS: 10
  • EPSS (probability of exploitation within 30 days): 20.1 %
  • On CISA's Known Exploited Vulnerabilities list since: 10 July 2026
  • First known exploitation: 10 July 2026
  • CISA's deadline for US federal agencies: 13 July 2026
  • Weakness: CWE-434
  • First seen by Risk Letters: 10 July 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD