CVE-2025-7891Public exploit

Local input theft via task-affinity hijacking

Published Jul 20, 2025 · Updated Jul 21, 2025

Task hijacking in InstantBits Web Video Cast 5.12.0 through 5.12.4 allows local users to capture sensitive input via a malicious app. Its AndroidManifest.xml retains the default task affinity for com.instantbits.cast.webvideo, allowing an attacker app to claim the same affinity and place a phishing activity at the root of the shared task stack. Exploitation requires installation and use of a malicious app on Android before 11; launching Web Video Cast then foregrounds the impostor activity, enabling credential or permission theft.

CVSS severity5.5
Medium
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Task hijacking in InstantBits Web Video Cast 5.12.0 through 5.12.4 allows local users to capture sensitive input via a malicious app. Its AndroidManifest.xml retains the default task affinity for com.instantbits.cast.webvideo, allowing an attacker app to claim the same affinity and place a phishing activity at the root of the shared task stack. Exploitation requires installation and use of a malicious app on Android before 11; launching Web Video Cast then foregrounds the impostor activity, enabling credential or permission theft.

The record

CVE
CVE-2025-7891
Published
Jul 20, 2025
Updated
Jul 21, 2025
Vendor
InstantBits Inc
Product
Web Video Cast
Classifications
CWE-926, T1056.002
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.12.0
  2. Affected versionversion=5.12.1
  3. Affected versionversion=5.12.2
  4. Affected versionversion=5.12.3
  5. Affected versionversion=5.12.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

InstantBits Inc · Web Video Castversion=5.12.0; version=5.12.1; version=5.12.2; version=5.12.3; version=5.12.4

Published CVSS scores

4.3VulDBAV:L/AC:L/Au:S/C:P/I:P/A:P
5.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
1.9VulDBCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
5.5NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-926Improper Export of Android Application Components
T1056.002Input Capture: GUI Input Capture

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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