CVE-2026-40230 MEDIUM

CVE-2026-40230: Helpy 2.8.0 - Stored XSS in knowledgebase Doc body rendering

Vendor Helpyio

Product helpy

Weakness CWE-79 · XSS

Published April 29, 2026

Last update April 29, 2026

View on NVD All CVEs

CVSS base score

4.8/10

Attack vector Network

Attack complexity Low

Privileges required High

User interaction —

Confidentiality —

Integrity —

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 29, 2026 CVE published

April 29, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-40230 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/79.html

Related vulnerabilities

04Related CVE

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