What is CVE-2026-2737?

CVE-2026-2737 is a medium-severity vulnerability in Progress Flowmon, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-04-02.

How severe is CVE-2026-2737?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Progress Flowmon

CVE-2026-2737

A vulnerability exists in Progress Flowmon versions prior to 12.5.8 and 13.0.6, whereby an administrator who clicks a malicious link provided by an attacker may inadvertently trigger unintended actions within their authenticated web sessio…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (9.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Progress Flowmon
Progress Software Flowmon — versions Flowmon 12 versions prior to 12.5.8, Flowmon 13 versions prior to 13.0.6

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@progress.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-2737?: CVE-2026-2737 is a medium-severity vulnerability in Progress Flowmon, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-04-02.
How severe is CVE-2026-2737?: Medium severity. CVSS v3 base score is 6.1 out of 10.