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CVE-2026-53906

MEDIUM
5.1
CVSS 4.0
Description
MCO is vulnerable to Path Disclosure and Path Traversal in file handling functionality related to data export and upload. Improper validation of the filename parameter allows writing files to arbitrary locations as well as indirect disclosure of absolute server paths through error messages. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 25.3.3.1 but may also affect other versions.

Metadata

CVE ID
CVE-2026-53906
State
PUBLISHED
Assigner
CERT-PL
Reserved
2026-06-11 07:44 UTC
Published
2026-07-01 11:58 UTC
Last updated
2026-07-01 13:39 UTC
Primary CWE
CWE-22
CWE-22 Improper Limitation of a Pathname to a Restricted Dir…
Vendor / Product
MyComplianceOffice / MCO
Sources
cve.org  ·  NVD

Severity & Metrics

5.1 MEDIUM CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
MyComplianceOffice MCO — 25.3.3.1
Weakness (CWE)
CWESourceDescription
CWE-209 cna CWE-209 Generation of Error Message Containing Sensitive Information
CWE-22 cna CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSS scores (1)
ScoreSeverityVersionSourceVector
5.1 MEDIUM 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
References (2)
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