Stored Cross-Site Scripting Vulnerability in AgentFlow by Flowring
CVE-2026-2099

5.1MEDIUM

Key Information:

Vendor

Flowring

Status
Agentflow
Vendor
CVE Published:
10 February 2026

What is CVE-2026-2099?

AgentFlow developed by Flowring suffers from a Stored Cross-Site Scripting vulnerability that permits authenticated remote attackers to inject persistent JavaScript code into the application. This malicious code is executed in the browsers of users when they load affected pages, potentially leading to sessions hijacking, data leakage, and other security breaches.

Affected Version(s)

AgentFlow 4.0.* < 4.0.0.1878.877

References

https://www.twcert.org.tw/tw/cp-132-10699-49c0b-1.html
third-party-advisory
https://www.twcert.org.tw/en/cp-139-10700-3534d-2.html
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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