CVE-2021-23848Network attack vector

Reflected XSS via unneutralized URL content

Published Jun 9, 2021 · Updated Sep 16, 2024

Reflected XSS in the URL handler of Bosch CPP Firmware allows remote attackers to execute JavaScript in a user's browser through a crafted link. The web interface's URL handler returns attacker-controlled URL content without neutralizing it before page generation. Exploitation requires knowledge of the camera address and user interaction; an active administrative browser session places camera data and settings at risk.

CVSS severity8.3
High
EPSS probability0.56%
Next 30 days · Sep 17, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in the URL handler of Bosch CPP Firmware allows remote attackers to execute JavaScript in a user's browser through a crafted link. The web interface's URL handler returns attacker-controlled URL content without neutralizing it before page generation. Exploitation requires knowledge of the camera address and user interaction; an active administrative browser session places camera data and settings at risk.

The record

CVE
CVE-2021-23848
Published
Jun 9, 2021
Updated
Sep 16, 2024
Vendor
Bosch Security Systems B.V.
Product
CPP Firmware
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 9, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record 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=all

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Bosch Security Systems B.V. · CPP Firmwareversion=all

Published CVSS scores

8.3Robert Bosch GmbHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
6.1NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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