Quick answers
- Is CVE-2026-39970 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-39970 being exploited in the wild.
- How severe is CVE-2026-39970?
- Informational severity, with a CVSS score of 8.5, published 22 May 2026.
- Which products and versions are affected?
- Typebot <= 3.15.2.
- Is there a fix for CVE-2026-39970?
- A patch was published on 2026-04-08: Version 3.16.0 released Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-39970 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-39970?
- Check whether you run Typebot at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A stored Cross-Site Scripting (XSS) vulnerability exists in TypeBot versions 3.15.2 and prior due to improper sanitization of SVG file uploads in the profile picture form. The application fails to restrict or neutralize XML-based uploads, allowing attackers to embed malicious JavaScript within an SVG file. When the file is rendered by the browser from the app.typebot.io domain, the script executes in the context of the victim's session. This can be used to exfiltrate session tokens or perform actions on behalf of the user. The issue is fixed in version 3.16.0 by improving file handling and sanitization.
Affected products
- baptisteArno typebot.io <= 3.15.2
Timeline
- 2026-04-08: patched: Version 3.16.0 released
- 2026-05-22: disclosed
- 2026-05-22: advisory