How severe is CVE-2026-2099?

CVE-2026-2099 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2026-2099 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-2099?

CVE-2026-2099 affects Flowring Agentflow. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-2099?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-2099 have an EU (EUVD) identifier?

Yes. CVE-2026-2099 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6876.

When was CVE-2026-2099 published?

CVE-2026-2099 was published on 2026-02-10 and last updated on 2026-06-17.

CVE-2026-2099

CVE-2026-2099 is a medium-severity vulnerability in Flowring Agentflow with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v4: 5.1
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-6876
Weakness: CWE-79
Affected product: Flowring Agentflow
Published: 2026-02-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-2099?: 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.
How severe is CVE-2026-2099?: CVE-2026-2099 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2026-2099 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-2099?: CVE-2026-2099 affects Flowring Agentflow. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-2099?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-2099 have an EU (EUVD) identifier?: Yes. CVE-2026-2099 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-6876.
When was CVE-2026-2099 published?: CVE-2026-2099 was published on 2026-02-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:flowring:agentflow:*:*:*:*:*:*:*:*

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