Unquoted Service Path Vulnerability in Adaware Web Companion by Lavasoft
CVE-2019-25287

8.5HIGH

Key Information:

Vendor

Webcompanion

Status
Adaware Web Companion Version
Vendor
CVE Published:
4 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2019-25287?

Adaware Web Companion version 4.8.2078.3950 is susceptible to an unquoted service path vulnerability within its WCAssistantService. This flaw allows local users to exploit the unquoted path located in 'C:\Program Files (x86)\Lavasoft\Web Companion\Application', potentially enabling them to execute malicious code with elevated privileges during the service startup. The lack of quotation marks around the service path can lead to significant security risks, particularly in environments where the Windows service is improperly configured.

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Affected Version(s)

Adaware Web Companion version 4.8.2078.3950

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2019-25287 - Proof of Concept

References

https://www.exploit-db.com/exploits/47597
exploit
https://webcompanion.com/en/
product
https://www.vulncheck.com/advisories/adaware-web-companio...
third-party-advisory

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Mariela L Martínez Hdez
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