CVE-2026-11944 | openSIS Classic 9.3 contains an authenticated path traversal… | CVSS 5.3 MEDIUM

Description

openSIS Classic 9.3 contains an authenticated path traversal vulnerability in the legacy messaging sent-mail attachment download functionality that allows an authenticated attacker to read arbitrary files on the server via crafted path traversal sequences.

Metadata

CVE ID: CVE-2026-11944
State: PUBLISHED
Assigner: Fluid Attacks
Reserved: 2026-06-10 21:25 UTC
Published: 2026-07-14 15:23 UTC
Last updated: 2026-07-14 15:58 UTC
Primary CWE: CWE-22
CWE-22 Improper Limitation of a Pathname to a Restricted Dir…
Vendor / Product: OS4ED / openSIS-Classic
Sources: cve.org · NVD

Severity & Metrics

5.3 MEDIUM CVSS 4.0

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

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: no
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
OS4ED	openSIS-Classic	Windows,MacOS,Linux	9.3

Weakness (CWE)

CWE	Source	Description
CWE-22	cna	CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS scores (1)

Score	Severity	Version	Source	Vector
5.3	MEDIUM	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References (2)