Medium severity · published Aug 19, 2026
CVE-2026-18371
HTML injection in M-Files Web
5.1
CVSS
0.4%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 34% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MW
M-Files Web · M-Files Corporation
before 26.8.16330.2 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-18371
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-18371
empower.m-files.com
https://empower.m-files.com/security-advisories/CVE-2026-18371
More from M-Files Web
4.8
CVE-2026-18372
CSS injection in M-Files Web