Medium severity · published Feb 10, 2026
CVE-2026-2099
Flowring｜AgentFlow - Stored Cross-Site Scripting
5.4
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AG
AgentFlow · Flowring
4.0.* before 4.0.0.1878.877 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-2099
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-2099
Third Party Advisory
https://www.twcert.org.tw/en/cp-139-10700-3534d-2.html
Third Party Advisory
https://www.twcert.org.tw/tw/cp-132-10699-49c0b-1.html
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