CVE-2026-18372

CSS injection in M-Files Web

State: Published
Severity: 4.8 Medium
Published: Aug 19, 2026
Updated: Aug 20, 2026
Reserved: Jul 30, 2026

Description

CSS injection vulnerability in M-Files Web before 26.8.16330.2 allows an authenticated vault administrator to inject arbitrary CSS, affecting the web user interface displayed to other vault users.

Scores

CVSS	Score	Vector	Source
4.0	4.8 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N	M-Files Corporation

Weaknesses

CWE-79 Improper neutralization of input during web page generation ('cross-site scripting')

Affected Products

Product	Versions
M-Files WebM-Files Corporation	before 26.8.16330.2Affected

References

https://empower.m-files.com/security-advisories/CVE-2026-18372vendor-advisory

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