CVE-2026-78213
Received Received - Intake

Stored XSS in Heptabase by Hepta Platforms

Publication date: 2026-08-24

Last updated on: 2026-08-24

Assigner: TWCERT/CC

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.

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Meta Information

Published
2026-08-24
Last Modified
2026-08-24
Generated
2026-08-24
AI Q&A
2026-08-24
EPSS Evaluated
N/A
NVD
CVE-2026-78213
EUVD
EUVD-2026-64720

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
hepta_platforms heptabase to 1.93.1 (exc)
hepta_platforms heptabase From 1.93.1 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This is a Stored Cross-Site Scripting (XSS) vulnerability in Heptabase, a product by Hepta Platforms, Inc. An authenticated remote attacker can inject malicious scripts into specific pages. When other users access these pages, the injected JavaScript executes, potentially allowing unauthorized actions or data theft.

Detection Guidance

To detect this stored XSS vulnerability in Heptabase, check the installed version of Heptabase. If it is v1.91.3 or earlier, the system is vulnerable. Use commands like 'curl -s https://your-heptabase-instance.com/version' or check the application's version in the admin panel. Compare the version against the patched version v1.93.1 or later.

Impact Analysis

If you use Heptabase v1.91.3 or earlier, an attacker could steal your session cookies, redirect you to malicious sites, or perform actions on your behalf without consent. This could lead to unauthorized access to sensitive data or account takeover.

Compliance Impact

This vulnerability could violate GDPR by exposing user data or failing to ensure data confidentiality. For HIPAA, it may risk protected health information (PHI) exposure. Organizations must address it to maintain compliance with data protection requirements.

Mitigation Strategies

Upgrade Heptabase to version 1.93.1 or later to resolve the vulnerability. Ensure only trusted users have authentication access to the system.

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