CVE-2026-40230

MEDIUM

Helpy 2.8.0 - Stored XSS in knowledgebase Doc body rendering

Title source: cna

Description

Helpy contains a stored cross-site scripting vulnerability in the knowledge base Doc rendering logic. An authenticated attacker with admin or agent editor privileges can persist arbitrary HTML or JavaScript in the body field of a knowledge base Doc.This issue affects helpy: 2.8.0.

References (2)

[Third Party Advisory] https://fluidattacks.com/es/advisories/prisioneros

[Product] https://github.com/helpyio/helpy

Scores

CVSS v4 4.8

EPSS 0.0003

EPSS Percentile 7.3%

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-79

Status published

Products (1)

helpyio/helpy 2.8.0

Published Apr 29, 2026

Tracked Since Apr 29, 2026