Vulnerability · Published Aug 24, 2026 · Assigned by twcert
CVE-2026-78213Hepta Platforms｜Heptabase - Stored Cross-Site Scripting
High 8.7
In plain English
A high-severity cross-site scripting in Heptabase from Hepta Platforms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).
Severity (CVSS 3.1)8.7High
Exploit odds (30 days)0.4%top 61.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Hepta Platforms | Heptabase | all |
Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
References
- https://www.twcert.org.tw/tw/cp-132-11125-9d359-1.html third-party-advisory
- https://www.twcert.org.tw/en/cp-139-11124-b8b51-2.html third-party-advisory