CVE-2025-50538 Flowise is vulnerable to stored XSS via "View Messages" allows credential theft in FlowiseAI admin panel
Attackers can inject malicious scripts via IFRAME elements in chat logs, potentially compromising admin sessions in Flowise.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2025-50538?
CVE-2025-50538 is a high-severity cross-site scripting vulnerability in Flowiseai Flowise, published on 6 Oct 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Flowise before 3.0.5 allows XSS via an IFRAME element when an admin views the chat log.
Weakness: CWE-79
Which versions are affected by CVE-2025-50538?
2 open source packages ship an affected version, including flowise. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
flowise npm | All versions | 3.0.8 |
flowise npm | All versions | 3.0.8 |
Products include Flowiseai Flowise.
How do I fix CVE-2025-50538?
Upgrade flowise to 3.0.8 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2025-50538 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-50538 exists.
Other vulnerabilities in Flowiseai Flowise
- CVE-2025-71338 Flowise through 2.2.7 - Arbitrary File Write to Remote Code Execution via document-store API
- CVE-2026-40933 Flowise: Authenticated RCE Via MCP Adapters
- CVE-2025-61913 Flowise is vulnerable to arbitrary file read, arbitrary file write
- CVE-2025-59528 Flowise has Remote Code Execution vulnerability
- CVE-2026-52098 Code injection in n/a
Sources
Also known as GHSA-964p-j4gg-mhwc.