What is CVE-2026-78213?

CVE-2026-78213 is a high-severity vulnerability in Hepta Platforms Heptabase, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-08-24.

How severe is CVE-2026-78213?

High severity. CVSS v3 base score is 8.7 out of 10.

XSS in Hepta Platforms Heptabase

CVE-2026-78213

Heptabase developed by Hepta Platforms, Inc. has a Stored Cross-Site Scripting vulnerability. Authenticated remote attackers can inject persistent malicious content into specific pages, causing arbitrary JavaScript code to execute when other users click the crafted content.

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N.

Affected products

Hepta Platforms Heptabase

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

twcert@cert.org.tw (third-party-advisory)
twcert@cert.org.tw (third-party-advisory)

Frequently asked questions

What is CVE-2026-78213?: CVE-2026-78213 is a high-severity vulnerability in Hepta Platforms Heptabase, classified under Cross-site Scripting. CVSS score: 8.7/10. Published 2026-08-24.
How severe is CVE-2026-78213?: High severity. CVSS v3 base score is 8.7 out of 10.