CVE-2023-48198Public exploitNetwork attack vector

Cookie theft via stored product-description script

Published Nov 15, 2023 · Updated Sep 29, 2025

Stored cross-site scripting in Grocy 4.0.3 and earlier allows remote authenticated users to steal victims' cookies through product descriptions. The product-description flow persists attacker-supplied markup associated with /api/stock/products and renders it as active browser script without effective neutralization. Low-privilege access is required to save the description, and a victim must view the affected content; execution remains within that victim's browser context.

CVSS severity5.4
Medium
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Grocy 4.0.3 and earlier allows remote authenticated users to steal victims' cookies through product descriptions. The product-description flow persists attacker-supplied markup associated with /api/stock/products and renders it as active browser script without effective neutralization. Low-privilege access is required to save the description, and a victim must view the affected content; execution remains within that victim's browser context.

The record

CVE
CVE-2023-48198
Published
Nov 15, 2023
Updated
Sep 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1539
Attack vector
network
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 vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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.

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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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie

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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