dbcve.org
Video SecurityApplication · Bosch

CVE-2021-23863

MEDIUM · 6.1 CVSS v3.1 Published 2022-01-28
Fix available
A fix is available. Upgrade to 3.2.4 or later.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
HTML code injection vulnerability in Android Application, Bosch Video Security, version 3.2.3. or earlier, when successfully exploited allows an attacker to inject random HTML code into a component loaded by WebView, thus allowing the Application to display web resources controlled by the attacker.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

This is a WebView HTML injection vulnerability in the Bosch Video Security Android application version 3.2.3 and earlier. The app loads untrusted HTML input into a WebView component without proper sanitization, allowing an attacker to inject malicious HTML/JavaScript that executes within the WebView context, potentially enabling cookie theft, session hijacking, or further payload delivery.

MitigationUpgrade to a version newer than 3.2.3, or implement input validation and output encoding before loading content into WebView and disable JavaScript execution if not required.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Video SecurityApplication
Affected:< 3.2.4

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify if Bosch Video Security app is installed
    On the Android device, go to Settings > Apps > Apps, or use ADB command: 'adb shell pm list packages | grep bosch' to list installed packages containing 'bosch'
    Affected if The package com.bosch.security.cameras or similar Bosch Video Security package is present on the device
  2. Determine installed application version
    In Settings > Apps > Bosch Video Security > App info, check the 'Version' or 'Version name' field. Alternatively, use ADB: 'adb shell dumpsys package <package_name> | grep versionName'
    Affected if A version number is displayed
  3. Compare version to affected range
    Compare the installed version number to 3.2.4. The app version format typically appears as '3.2.3' or similar in the app info screen
    Affected if Installed version is 3.2.3 or any version lower than 3.2.4 (e.g., 3.2.2, 3.2.1, 3.2.0, earlier versions)
  4. Verify WebView component usage (optional context)
    This is a code-level check requiring access to the app binary. Decompile the APK and search for WebView usage with loadData or loadDataWithBaseURL methods without proper sanitization routines. This step requires reverse engineering tools and is optional for version-based detection
    Affected if N/A - version check is sufficient for determining exposure; this confirms the vulnerable code path exists

The user is affected if the Bosch Video Security Android app version installed on their device is 3.2.3 or any version lower than 3.2.4.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 3.2.4 or later
Fixed in 3.2.4
Interim mitigation

Upgrade to a version newer than 3.2.3, or implement input validation and output encoding before loading content into WebView and disable JavaScript execution if not required.

Recommended fix Moderate confidence

Bosch Video Security version 3.2.4 or later

  1. Open the Google Play Store on the Android device
  2. Search for 'Bosch Video Security' or 'Bosch Security' app
  3. Verify the current installed version in the app settings or Play Store listing
  4. Update the application to version 3.2.4 or later if not already updated
  5. Alternatively, download the updated APK from the official Bosch Security Systems website or authorized distribution channels
  6. After update, verify the application version shows 3.2.4 or higher in the app settings

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Video Security Scoped from the published advisory
  • Consultation2.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
13.0 hours of engineering $2,290
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2021-23863 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data