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CVE-2026-18371— HTML injection in M-Files Web

Quick assessment

Affected
M-Files Corporation M-Files Web
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

M-Files Web是芬兰M-Files公司的一款企业文档管理软件。 M-Files Web 26.8.16330.2之前版本存在跨站脚本漏洞，该漏洞源于HTML注入，可能导致经过身份验证的攻击者影响显示给其他用户的Web用户界面内容。

CVSS 5.1 · Medium EPSS 0.40% · P33

Affected Version Matrix 1

VendorProduct Version RangeStatus
M-Files Corporation M-Files Web < 26.8.16330.2 affected
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I. Basic Information for CVE-2026-18371

Vulnerability Information
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Vulnerability Title
HTML injection in M-Files Web
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
M-Files Web 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
M-Files Web是芬兰M-Files公司的一款企业文档管理软件。 M-Files Web 26.8.16330.2之前版本存在跨站脚本漏洞，该漏洞源于HTML注入，可能导致经过身份验证的攻击者影响显示给其他用户的Web用户界面内容。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
M-Files Corporation M-Files Web 0 ~ 26.8.16330.2 -

II. Public POCs for CVE-2026-18371

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III. Intelligence Information for CVE-2026-18371

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IV. Related Vulnerabilities

Same product: M-Files Web
Same vendor: M-Files Corporation
Same weakness: CWE-79

V. Comments for CVE-2026-18371

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