CVE-2026-48939

iCagenda iCagendaActively Exploited (CISA KEV)CVSS 10.0KEV0-Day

Actively exploited (CISA KEV) - patch before 2026-07-13

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.

Actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog. No distribution fix is listed yet; apply vendor mitigations and monitor.

Recommended action: No fix is published yet for an actively-exploited flaw. Apply vendor mitigations, restrict exposure, and watch for a patch.

CVE-2026-48939 iCagenda iCagenda Actively Exploited (CISA KEV)

Severity metrics

CVSS 4.0 : 10.0 CRITICAL · CVSS 3.1 : 9.8 CRITICAL

Attack vectorNetwork (remote)

Attack complexityLow

Attack requirementsNone

Privileges requiredNone

User interactionNone

Confidentiality impactHigh

Integrity impactHigh

Availability impactHigh

Subsequent confidentialityHigh

Subsequent integrityHigh

Subsequent availabilityHigh

Vector: AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/U:Red

Affected & fixed versions by distribution

Versions are the native distribution strings (backport-aware): RHEL/Debian/SUSE backport fixes, so compare with the distro version comparator (dpkg / rpm / vercmp), not the upstream version.

No affected package in the tracked watchlist yet (Debian, Ubuntu, Arch, SUSE, Red Hat...). Triage may still be pending.

Sources

Advisory NVD CVE.org

Published 2026-07-10 · source: CISA Known Exploited Vulnerabilities