PT-2026-3032 · Unknown · Oliver Library Server

Published 2026-01-15 · Updated 2026-01-20 · CVE-2021-47755

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Oliver Library Server version 5

Description An unauthenticated attacker can access arbitrary system files. This is possible due to unsanitized input in the FileServlet endpoint. The vulnerability is triggered by manipulating the fileName parameter, allowing download of sensitive files from the server's filesystem.

Recommendations Apply input sanitization to the fileName parameter in the FileServlet endpoint.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2021-47755

Affected Products

Oliver Library Server

References · 7

• 🔥 https://exploit-db.com/exploits/50599 · Exploit
• https://osv.dev/vulnerability/CVE-2021-47755 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-47755 · Security Note
• https://twitter.com/CveFindCom/status/2011840920455385324 · Twitter Post
• https://twitter.com/cracbot/status/2013567240168501568 · Twitter Post
• https://softlinkint.com/product/oliver · Note
• https://twitter.com/CVEnew/status/2011926111958286523 · Twitter Post