Oliver Library Server v5 contains a file download vulnerability that allows unauthenticated attackers to access arbitrary system files through unsanitized input in the FileServlet endpoint. Attackers can exploit the vulnerability by manipulating the 'fileName' parameter to download sensitive files from the server's filesystem.
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Fixes

Solution

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Workaround

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History

Thu, 15 Jan 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 15 Jan 2026 16:00:00 +0000

Type Values Removed Values Added
Description Oliver Library Server v5 contains a file download vulnerability that allows unauthenticated attackers to access arbitrary system files through unsanitized input in the FileServlet endpoint. Attackers can exploit the vulnerability by manipulating the 'fileName' parameter to download sensitive files from the server's filesystem.
Title Oliver Library Server v5 - Arbitrary File Download
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-01-15T18:27:15.093Z

Reserved: 2026-01-10T16:58:28.312Z

Link: CVE-2021-47755

cve-icon Vulnrichment

Updated: 2026-01-15T16:13:34.561Z

cve-icon NVD

Status : Received

Published: 2026-01-15T16:16:06.350

Modified: 2026-01-15T19:16:01.783

Link: CVE-2021-47755

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses