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Fencer Vulns
high 8.2

CVE-2025-50538 in the critical feed json

Flowise is vulnerable to stored XSS via "View Messages" allows credential theft in FlowiseAI admin panel

published 2025-10-03 13 mo ago modified 2026-10-09 31 d ago also GHSA-964p-j4gg-mhwc , EUVD-2025-32219

cvss
8.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
14.7%
EPSS 14.7% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

Flowise before 3.0.5 allows XSS via an IFRAME element when an admin views the chat log.

Patch / fix

  • npm flowise 3.0.8
  • FlowiseAI Flowise 3.0.5

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
13 mo ago

Exploit prediction

14.71% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-964p-j4gg-mhwc referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
GitHub 3.1 9.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Affected packages

ecosystem package affected fixed in
npm flowise
<3.0.8
3.0.8

Affected products

  • FlowiseAI Flowise

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.