XSS in Helpy.io Helpy
CVE-2026-40230
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (16.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001
Affected products
- Helpy.io Helpy — versions 2.8.0
- Helpyio Helpy — versions 2.8.0
Weakness classification (CWE)
References
- fluidattacks.com/es/advisories/prisioneros (Exploit, Third Party Advisory, third-party-advisory)
- github.com/helpyio/helpy (Product, product)
Frequently asked questions
- What is CVE-2026-40230?
- CVE-2026-40230 is a medium-severity vulnerability in Helpy.io Helpy, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-04-29.
- How severe is CVE-2026-40230?
- Medium severity. CVSS v3 base score is 5.4 out of 10.