CVE-2022-39019: Broken access controls on PDFtron WebviewerUI in M-Files Hubshare

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-10-31 · updated 2026-06-17
Weakness: CWE-287

Description

Broken access controls on PDFtron WebviewerUI in M-Files Hubshare before 3.3.11.3 allows unauthenticated attackers to upload malicious files to the application server.

Affected products

M-Files Hubshare: before 3.3.11.3 — fixed in 3.3.11.3

How to fix

Upgrade to a fixed version: M-Files Hubshare 3.3.11.3. Check the vendor advisory for mitigations.

References

https://www.themissinglink.com.au/security-advisories/cve-2022-39019
https://www.themissinglink.com.au/security-advisories/cve-2022-39019

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