CVE-2021-47755
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductSoftlinkint Oliver V5 Library
PublishedJan 15, 2026
First seenJan 15, 2026
Weakness typeCWE-22Path traversal
How to fix
Update
- softlinkint oliver_v5_library8.00.008.053 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| softlinkint oliver_v5_library | v < 8.00.008.053 | 8.00.008.053 |
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