Improper Export Vulnerability in InstantBits Web Video Cast App for Android
CVE-2025-7891

4.8MEDIUM

Key Information:

Vendor

Instantbits

Status
Web Video Cast App
Vendor
CVE Published:
20 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-7891?

A vulnerability exists in the InstantBits Web Video Cast App prior to version 5.12.4 for Android, where improper export settings in the AndroidManifest.xml file could allow local attackers to exploit exposed application components. The nature of this vulnerability poses risks by enabling unauthorized access to certain functionalities. Despite an early disclosure of this issue to the vendor, no response has been received, raising concerns about the security posture of the affected product. Exploits have been made public, emphasizing the need for users to be cautious.

Affected Version(s)

Web Video Cast App 5.12.0

Web Video Cast App 5.12.1

Web Video Cast App 5.12.2

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-2025-7891 - Proof of Concept

References

https://vuldb.com/?id.317006
vdb-entry
https://vuldb.com/?ctiid.317006
signaturepermissions-required
https://vuldb.com/?submit.615271
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

fxizenta (VulDB User)
.
CVE-2025-7891 : Improper Export Vulnerability in InstantBits Web Video Cast App for Android