How severe is CVE-2023-26100?

CVE-2023-26100 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-26100 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-26100?

CVE-2023-26100 affects Progress Flowmon Os. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-26100?

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

When was CVE-2023-26100 published?

CVE-2023-26100 was published on 2023-04-21 and last updated on 2026-06-17.

CVE-2023-26100

CVE-2023-26100 is a medium-severity vulnerability in Progress Flowmon Os with a CVSS 3.x base score of 6.1. 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 6.1)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Progress Flowmon Os
Published: 2023-04-21
Last modified: 2026-06-17

Description

In Progress Flowmon before 12.2.0, an application endpoint failed to sanitize user-supplied input. A threat actor could leverage a reflected XSS vulnerability to execute arbitrary code within the context of a Flowmon user's web browser.

Frequently asked questions

What is CVE-2023-26100?: In Progress Flowmon before 12.2.0, an application endpoint failed to sanitize user-supplied input. A threat actor could leverage a reflected XSS vulnerability to execute arbitrary code within the context of a Flowmon user's web browser.
How severe is CVE-2023-26100?: CVE-2023-26100 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-26100 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-26100?: CVE-2023-26100 affects Progress Flowmon Os. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-26100?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-26100 published?: CVE-2023-26100 was published on 2023-04-21 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:progress:flowmon_os:*:*:*:*:*:*:*:*

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