XSS in Progress Software Flowmon

CVE-2025-10240

A vulnerability exists in the Progress Flowmon web application prior to version 12.5.5, whereby a user who clicks a malicious link provided by an attacker may inadvertently trigger unintended actions within their authenticated session.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (22.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 22.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-10240: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-10240?
CVE-2025-10240 is a high-severity vulnerability in Progress Software Flowmon, classified under Cross-site Scripting. CVSS score: 8.8/10. Published 2025-10-09.
How severe is CVE-2025-10240?
High severity. CVSS v3 base score is 8.8 out of 10.