Cross-Site Scripting (XSS) in flowise (CVE-2025-29192)
Summary
Cross-site scripting in flowise (CVE-2025-29192). Confidential information can be exposed externally. Mitigation: upgrade to 3.0.5 or later.
Original description
The description as published by the source.
Description
In the chat log, tags like input and form are allowed. This makes a potential vulnerability where an attacker could inject malicious HTML into the log via prompts. When an admin views the log containing the malicious HTML, the attacker could steal the admin's credentials or sensitive information with stored Cross Site Scripting.
PoC
If the above HTML code is entered, a very large img gets injected into the log. When an admin clicks the generated img, it alerts ‘XSS!!!’. It means stored xss is able in the chatbot.
?passwd=' + encodeURIComponent(localStorage.getItem('password'));" />
So when an admin clicks the img that generated by above html code, it sends a request, including credentials, to the attacker's IP. If attacker steal admin’s token, attacker can login as the admin in the apps.
Poc Video
Impact
An attacker could hijack an admin account in published chatbot. This can allow attacker to view chat logs of other users and API keys.
Source: NIST National Vulnerability Database NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2025-29192 has been found in flowise.
Confidential information can be exposed externally. CVSS score: 8.2/10.
What to do: upgrade flowise to 3.0.5 or later.
If unsure, ask your IT team or search "flowise CVE-2025-29192" on the vendor's site.
CVE-2025-29192 (flowise) — CWE-79 / CVSS v3 8.2
Attack vector: remote (network-reachable) / unauthenticated
Patched: 3.0.5 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Cross-site scripting (XSS) (CWE-79) exists in flowise.
Check the vendor advisory for the affected versions of flowise.
Severity: High (CVSS 8.2/10). Confidential information can be exposed externally.
Update to 3.0.5.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'flowise' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'flowise' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
flowiseを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply patch patch
Upgrade flowise to 3.0.5ステージング環境で 3.0.5 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
3Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- advisory nvd.nist.gov
- exploit github.com
- package github.com
- patch cve@mitre.org
- web cve@mitre.org
- web github.com