CVE-2021-47755

HIGH

Oliver Library Server v5 - Arbitrary File Download

Title source: CVE List
Search associated code STIX 2.1 vulnerability STIX 2.1 with PoCs

Record summary

CVE-2021-47755 has a selected CVSS score of 8.7 (high); EIP currently links 1 catalogued exploit.

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.

Description source: CVE List

Exploitation context

Available material

Catalogued exploits
1

CISA SSVC decision

ExploitationPoC
AutomatableYes
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Jan 15, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

Oliver Library Server

Browse Softlink Education / Oliver Library Server
CVE List< 8.00.008.053affected

Proofs of concept

1

Catalogued exploits

ExploitDBOliver Library Server v5 - Arbitrary File DownloadExploitDB exploitby Mandeep SinghNot analyzed1 file

linked to 2 vulnerabilities

ExploitDB
PoC details

References

3