P5Verified

CVE-2026-55876: platform < 2.2.60

CVE-2026-55876. CVSS 3.1 base score 3.5 (LOW, Vendor/CNA).

Affected technology

platform · < 2.2.60
HeliumEdu

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 3.1): Network (remote) · Low privileges required · User interaction required

What an attacker can do

Authenticated users can upload SVG and HTML attachments because conf/configs/common.py omits those formats from BLOCKED_ATTACHMENT_EXTENSIONS and BLOCKED_ATTACHMENT_MIME_TYPES, and helium/planner/serializers/attachmentserializer.py relies on those blocklists. Vendor/CNA’s CVSS 3.1 assessment (base score 3.5/10) rates confidentiality and availability impact as none; integrity impact as low.

Published 15-Oct-2026 18:55 UTC

CWE: CWE-79
CCR priority: 14.0 /100 (P5)
CVSS 3.1: 3.5 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N · Vendor/CNA
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-15 18:53:01.928580+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-55876.html