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

CVE-2025-50538

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

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

HIGH · CVSS 8.2 EPSS 0.00104
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
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Affected Products & Versions

1
flowiseai flowise< 3.0.5
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
npm flowise CRITICAL fixed in 3.0.8
⚠

Public Exploits & PoCs

1
pocgithub.com · GHSA-964p-j4gg-mhwcgithub.com
▣

Scoring & Timeline

8.2
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Oct 2025 · 02:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/FlowiseAI/Flowise/pull/4905Patch
https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.0.5Release Notes
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