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., ) 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.
CVE-2025-71331
Score 6.1 from GitHub Security Advisory published 2026-06-20. a secondary CVSS source baseline 6.1; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.1
- EG Score
- 6.1(medium)
- EG Risk
- 32(Track)EG Risk 32/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity61% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 25%
- KEV
- Not listed
Published
June 20, 2026
Last Modified
June 23, 2026
Advisory Details (2)
Auto-updated Jun 20, 2026Flowise - Cross-Site Scripting in Chat Messages and Agent Workflows | Advisories | VulnCheck
https://www.vulncheck.com/advisories/flowise-cross-site-scripting-in-chat-messages-and-agent-workflowsXSS vulnerability in Flowise · Advisory · FlowiseAI/Flowise · GitHub
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-4fr9-3x69-36wvVendor Advisories for CVE-2025-71331(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| flowise | — | 3.0.8 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 17× in last 7d / 79× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 164 total refreshes for this CVE.
- 2026-08-25 13:48 UTCEPSS rescore
- 2026-08-24 22:16 UTCEG score recompute
- 2026-08-24 22:16 UTCGHSA enrichment
- 2026-08-24 14:16 UTCEPSS rescore
- 2026-08-23 20:58 UTCEG score recompute
- 2026-08-23 20:58 UTCGHSA enrichment
- 2026-08-23 00:18 UTCEPSS rescore
- 2026-08-22 23:05 UTCEG score recompute
- 2026-08-22 23:05 UTCGHSA enrichment
- 2026-08-21 23:48 UTCEPSS rescore
- 2026-08-21 05:50 UTCEG score recompute
- 2026-08-21 05:50 UTCGHSA enrichment
- 2026-08-20 22:55 UTCEPSS rescore
- 2026-08-20 07:55 UTCEG score recompute
- 2026-08-20 07:55 UTCGHSA enrichment
- 2026-08-19 17:03 UTCEPSS rescore
- 2026-08-19 05:49 UTCGHSA enrichment
- 2026-08-17 14:44 UTCEG score recompute
- 2026-08-17 14:43 UTCGHSA enrichment
- 2026-08-17 13:46 UTCEPSS rescore
- 2026-08-16 16:51 UTCEG score recompute
- 2026-08-16 16:51 UTCGHSA enrichment
- 2026-08-16 14:55 UTCEPSS rescore
- 2026-08-16 02:14 UTCEPSS rescore
- 2026-08-15 18:58 UTCEG score recompute
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- 2026-08-15 18:58 UTCGHSA enrichment
- 2026-08-15 01:30 UTCEPSS rescore
- 2026-08-14 21:05 UTCGHSA enrichment
- 2026-08-13 23:12 UTCEG score recompute
- 2026-08-13 23:12 UTCGHSA enrichment
- 2026-08-13 22:00 UTCEPSS rescore
- 2026-08-13 01:11 UTCEG score recompute
- 2026-08-13 01:11 UTCGHSA enrichment
- 2026-08-12 13:50 UTCEPSS rescore
- 2026-08-12 03:18 UTCEG score recompute
- 2026-08-12 03:18 UTCGHSA enrichment
- 2026-08-11 13:42 UTCEPSS rescore
- 2026-08-11 05:24 UTCEG score recompute
- 2026-08-11 05:24 UTCGHSA enrichment
- 2026-08-10 23:59 UTCEPSS rescore
- 2026-08-10 07:31 UTCEG score recompute
- 2026-08-10 07:31 UTCGHSA enrichment
- 2026-08-09 13:46 UTCEPSS rescore
- 2026-08-09 09:38 UTCEG score recompute
- 2026-08-09 09:38 UTCGHSA enrichment
- 2026-08-08 16:36 UTCEPSS rescore
- 2026-08-08 11:45 UTCEG score recompute
- 2026-08-08 11:45 UTCGHSA enrichment
- 2026-08-07 16:27 UTCEPSS rescore
- 2026-08-07 13:52 UTCGHSA enrichment
- 2026-08-06 15:58 UTCEG score recompute
- 2026-08-06 15:58 UTCGHSA enrichment
- 2026-08-06 13:46 UTCEPSS rescore
- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-05 17:43 UTCGHSA enrichment
- 2026-08-04 15:17 UTCEG score recompute
- 2026-08-04 15:17 UTCGHSA enrichment
- 2026-08-04 10:37 UTCEPSS rescore
- 2026-08-03 16:22 UTCEG score recompute
- 2026-08-03 16:22 UTCGHSA enrichment
- 2026-08-03 10:35 UTCEPSS rescore
- 2026-08-02 18:26 UTCEG score recompute
- 2026-08-02 18:26 UTCGHSA enrichment
- 2026-08-02 02:26 UTCEPSS rescore
- 2026-08-01 20:33 UTCEG score recompute
- 2026-08-01 20:33 UTCGHSA enrichment
- 2026-08-01 04:15 UTCEPSS rescore
- 2026-07-31 22:40 UTCGHSA enrichment
- 2026-07-31 00:45 UTCEG score recompute
- 2026-07-31 00:45 UTCGHSA enrichment
- 2026-07-30 16:27 UTCEPSS rescore
- 2026-07-30 02:51 UTCEG score recompute
- 2026-07-30 02:51 UTCGHSA enrichment
- 2026-07-30 01:30 UTCEPSS rescore
- 2026-07-29 01:32 UTCEG score recompute
- 2026-07-29 01:32 UTCGHSA enrichment
- 2026-07-27 18:01 UTCEG score recompute
- 2026-07-27 18:01 UTCGHSA enrichment
- 2026-07-27 14:13 UTCEPSS rescore
- 2026-07-26 16:41 UTCEG score recompute
- 2026-07-26 16:40 UTCGHSA enrichment
- 2026-07-26 14:54 UTCEPSS rescore
- 2026-07-26 14:54 UTCEPSS rescore
- 2026-07-25 14:17 UTCEPSS rescore
- 2026-07-25 14:17 UTCEPSS rescore
- 2026-07-24 14:17 UTCEPSS rescore
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 03:03 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-19 02:28 UTCEPSS rescore
- 2026-07-18 10:04 UTCEPSS rescore
- 2026-07-18 10:04 UTCEPSS rescore
- 2026-07-17 05:17 UTCGHSA enrichment
- 2026-07-16 17:02 UTCEPSS rescore
Related CVEs(same CWE)
Same CWE
10 shownCWE-80
- CVE-2019-13923EG 9.6CRITICAL
- CVE-2020-2503EG 9.0CRITICAL
- CVE-2018-19953NVD 6.1EG 9.0 KEVEPSS p98CRITICAL
- CVE-2018-19943NVD 5.4EG 9.0 KEVEPSS p97CRITICAL
- CVE-2020-13965NVD 6.1EG 9.0 KEVEPSS p100CRITICAL
- CVE-2020-13562NVD 6.1EG 8.6EPSS p100HIGH
- CVE-2020-13564NVD 6.1EG 8.5EPSS p99HIGH
- CVE-2020-13563NVD 6.1EG 8.5EPSS p99HIGH
- CVE-2020-26218EG 8.0HIGH
- CVE-2020-5241EG 7.7HIGH
Frequently asked(5)
What is CVE-2025-71331?
When was CVE-2025-71331 disclosed?
Is CVE-2025-71331 actively exploited?
What is the CVSS score of CVE-2025-71331?
How do I remediate CVE-2025-71331?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-71331
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