Vulnerability · Published Feb 10, 2026 · Assigned by twcert

CVE-2026-2099Flowring｜AgentFlow - Stored Cross-Site Scripting

Medium 5.4

In plain English

A medium-severity cross-site scripting in AgentFlow from Flowring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 90.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

AgentFlow developed by Flowring has a Stored Cross-Site Scripting vulnerability, allowing authenticated remote attackers to inject persistent JavaScript codes that are executed in users' browsers upon page load.

Affected products (as reported)

Vendor	Product	Versions
Flowring	AgentFlow	4.0.* – before 4.0.0.1878.877

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

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