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CVE-2025-50538

Flowiseai Flowise cross-site scripting (XSS)

8.2 HIGHPublic exploitEPSS 14.0%
  1. Published6 Oct 2025

Description

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

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeChanged
ConfidentialityHigh
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

Affected products

Flowiseai Flowise< 3.0.5

Remediation

Fixed in
Flowiseai Flowise≥ 3.0.5

References

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Frequently asked

Is CVE-2025-50538 being actively exploited?

CVE-2025-50538 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 14.0%.

How severe is CVE-2025-50538?

CVE-2025-50538 has a CVSS 3.1 base score of 8.2, rated high. EPSS estimates a 14.0% probability of exploitation.

Which products are affected by CVE-2025-50538?

Affected products include Flowiseai Flowise.

How do I fix CVE-2025-50538?

Upgrade affected software to a fixed version, for example Flowiseai Flowise 3.0.5 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-50538 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.