CVE-2023-48199Public exploit

HTML injection via unsanitized API key parameters

Published Nov 15, 2023 · Updated Sep 29, 2025

HTML injection in Grocy 4.0.3 and earlier allows local users to alter QR code popup content via crafted manageApiKeys parameters. The manageApiKeys component inserts user-supplied parameter values into the QR code detail popup without sanitizing HTML tags, permitting arbitrary markup injection without script execution. Access requires a low-privilege local account and interaction with the affected API-key interface; the documented consequence is manipulated page content that can support social engineering, not JavaScript execution.

CVSS severity7.8
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

HTML injection in Grocy 4.0.3 and earlier allows local users to alter QR code popup content via crafted manageApiKeys parameters. The manageApiKeys component inserts user-supplied parameter values into the QR code detail popup without sanitizing HTML tags, permitting arbitrary markup injection without script execution. Access requires a low-privilege local account and interaction with the affected API-key interface; the documented consequence is manipulated page content that can support social engineering, not JavaScript execution.

The record

CVE
CVE-2023-48199
Published
Nov 15, 2023
Updated
Sep 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-74
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 29, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

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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