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CVE-2025-71331

Flowise before 3.0.8 contains a cross-site scripting (XSS) vulnerability caused by insufficient input filtering in chat messages and custom agent functions. An attacker can inject malicious JavaScript by sending an iframe payload (e.g., <iframe src="javascript:alert(document.cookie)">) in a chat box, or by having a custom agent function return an XSS payload from an external website. The injected script executes in the victim's browser, enabling theft of cookies and session data.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:5f5dbd3d88068f915e17dfb3456902682e4032f91f4733d8d3feba0b33ec5706
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact"…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:cdf5322e3a13c6e2b6c8a76bc5b358aeaaf5cd9618ac67ceb75a85f2dcff62f8 · sha256:192126f082cf958b… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:cdf5322e3a13c6e2b6c8a76bc5b358aeaaf5cd9618ac67ceb75a85f2dcff62f8 · sha256:192126f082cf958b… · /containers/cna/metrics/1/cvssV3_1

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","packageURL":"pkg:npm/flowise","product":"Flowise","vendor":"Flowise","versions":[{"lessThan":"3.0.8","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"3.0.8","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:cdf5322e3a13c6e2b6c8a76bc5b358aeaaf5cd9618ac67ceb75a85f2dcff62f8 · sha256:192126f082cf958b… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact"…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:cdf5322e3a13c6e2b6c8a76bc5b358aeaaf5cd9618ac67ceb75a85f2dcff62f8 · sha256:192126f082cf958b… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:cdf5322e3a13c6e2b6c8a76bc5b358aeaaf5cd9618ac67ceb75a85f2dcff62f8 · sha256:192126f082cf958b… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-80","description":"Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:cdf5322e3a13c6e2b6c8a76bc5b358aeaaf5cd9618ac67ceb75a85f2dcff62f8 · sha256:192126f082cf958b… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"tags":["exploit"],"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-4fr9-3x69-36wv"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:cdf5322e3a13c6e2b6c8a76bc5b358aeaaf5cd9618ac67ceb75a85f2dcff62f8 · sha256:192126f082cf958b… · /containers/adp/0/references/0
{"name":"GHSA Advisory GHSA-4fr9-3x69-36wv","tags":["vendor-advisory"],"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-4fr9-3x69-36wv"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:cdf5322e3a13c6e2b6c8a76bc5b358aeaaf5cd9618ac67ceb75a85f2dcff62f8 · sha256:192126f082cf958b… · /containers/cna/references/0
{"name":"VulnCheck Advisory: Flowise - Cross-Site Scripting in Chat Messages and Agent Workflows","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/flowise-cross-site-scripting-in-chat-messages-and-agent-workflows"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:cdf5322e3a13c6e2b6c8a76bc5b358aeaaf5cd9618ac67ceb75a85f2dcff62f8 · sha256:192126f082cf958b… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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