CVE-2021-45027

HIGH NUCLEI

Oliver v5 Library Server < 5.00.008.053 - Arbitrary File Download via FileServlet

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2021-45027. PoCs published by Mandeep Singh. A Nuclei detection template is also available.

AI-analyzed exploit summary This exploit demonstrates an arbitrary file download vulnerability in Oliver Library Server v5 via the FileServlet function. The vulnerability allows attackers to download arbitrary files by manipulating the fileName parameter in the URL.

Description

An arbitrary file download vulnerability in Oliver v5 Library Server Versions < 5.00.008.053 via the FileServlet function allows for arbitrary file download by an attacker using unsanitized user supplied input.

Exploits (1)

exploitdb WORKING POC
by Mandeep Singh · textremotewindows
https://www.exploit-db.com/exploits/50599

This exploit demonstrates an arbitrary file download vulnerability in Oliver Library Server v5 via the FileServlet function. The vulnerability allows attackers to download arbitrary files by manipulating the fileName parameter in the URL.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: Oliver Library Server v5 < 8.00.008.053
No auth needed
Prerequisites: Network access to the target server
devstral-2 · analyzed Feb 16, 2026 Full analysis →

Nuclei Templates (1)

Oliver 5 Library Server <8.00.008.053 - Local File Inclusion
HIGHVERIFIEDby gy741

References (2)

Core 2
Core References
Product, Vendor Advisory x_refsource_misc
https://www.softlinkint.com/product/oliver/
Exploit, Third Party Advisory, VDB Entry x_refsource_misc
https://www.exploit-db.com/exploits/50599

Scores

CVSS v3 7.5
EPSS 0.0158
EPSS Percentile 72.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-494
Status published
Products (1)
softlinkint/oliver_v5_library < 8.00.008.053
Published Sep 01, 2022
Tracked Since Feb 18, 2026