CVE-2026-18371
HTML injection in M-Files Web
MEDIUM
5.1
CVSS Score
Published: August 19, 2026 at 11:46 AM UTC
Updated: October 22, 2026 at 08:09 AM UTC
1 product affected across 1 vendorFiles M Files
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Severity
MEDIUM5.1
Exploit prediction
EPSS 0.4%
SSVC
No known exploit
Description
HTML injection vulnerability in M-Files Web before 26.8.16330.2 allows an authenticated attacker to affect web user interface contents displayed to other users.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
0 ≤ v < 26.8.16330.20
Affected range stops below 26.8.16330.2, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
5.1MEDIUMM-Files Corporation
Vector?
Quick Info
StatusDEFERRED
CWE
CWE-79
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