What’s Vulnerable › Vulnerabilities

CVE-2025-34154: UnForm Server Manager < 10.1.12 Unauthenticated Arbitrary File Read

• Severity: critical (CVSS 9.2 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-08-13 · updated 2026-06-17
• Weakness: CWE-22

Description

UnForm Server Manager versions prior to 10.1.12 expose an unauthenticated file read vulnerability via its log file analysis interface. The flaw resides in the arc endpoint, which accepts a fl parameter to specify the log file to be opened. Due to insufficient input validation and lack of path sanitization, attackers can supply relative paths to access arbitrary files on the host system — including sensitive OS-level files — without authentication.

Affected products

• Synergetic Data Systems Inc. UnForm Server Manager: before 10.1.12 — fixed in 10.1.12

How to fix

Upgrade to a fixed version: Synergetic Data Systems Inc. UnForm Server Manager 10.1.12. Check the vendor advisory for mitigations.

References

• https://gist.github.com/Janrdrz/3cf67a9ad488e07ceaacd7c1a7e59ae7
• https://synergetic-data.com/
• https://unform.com/download/uf101_readme.txt
• https://www.vulncheck.com/advisories/unform-server-manager-unauthenticated-arbitrary-file-read
• https://gist.github.com/Janrdrz/3cf67a9ad488e07ceaacd7c1a7e59ae7

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