VULNRABLE / Vulnerability / CVE-2026-55247

CVE-2026-55247

CRITICAL WATCH plone.app.event GHSA

Exploit verdict: CVSS 9.5 · critical severity

CVSS Score

9.5

Severity

CRITICAL

EPSS

Source

GHSA

Summary

plone.app.event vulnerable to denial of service via iCalendar import

What this means

CVE-2026-55247 is a critical-severity vulnerability affecting plone.app.event, rated CVSS 9.5. The EPSS model estimates a 0% probability of exploitation in the next 30 days. Published August 29, 2026.

View full advisory at GHSA →