XSS in Apprain

CVE-2025-41062

A vulnerability has been discovered in version 4.0.5 of appRain CMF, consisting of an authenticated reflected XSS due to a lack of proper validation of user input, through the 'page' parameter in /apprain/developer/addons.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.002 (5.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-41062?
CVE-2025-41062 is a medium-severity vulnerability in Apprain, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2025-09-04.
How severe is CVE-2025-41062?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2025-41062 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.