CVE-2025-34154

9.2 criticalEPSS 0.7%

Critical (9.2). EPSS 0.7% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

9.2 critical

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 52% of CVEs (scores of 2026-10-31)
CWE: CWE-22
Published: 2025-08-13
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

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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