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Aimeos GrapesJS CMS extension has possible stored XSS that's exploitable by authenticated editors

High severity GitHub Reviewed Published Dec 2, 2025 in aimeos/ai-cms-grapesjs

Package

composer aimeos/ai-cms-grapesjs (Composer)

Affected versions

>= 2021.04.1, < 2021.10.8
>= 2022.04.1, < 2022.10.9
>= 2023.04.1, < 2023.10.15
>= 2024.04.1, < 2024.10.8
>= 2025.04.1, < 2025.10.2

Patched versions

2021.10.8
2022.10.9
2023.10.15
2024.10.8
2025.10.2

Description

Impact

Javascript code can be injected by malicious editors for a stored XSS attack if the standard Content Security Policy is disabled.

Workaround

If the standard CSP rules are active (default in production mode), an exploit isn't possible.

Credits

Lwin Min Oo [email protected]

References

@aimeos aimeos published to aimeos/ai-cms-grapesjs Dec 2, 2025
Published by the National Vulnerability Database Dec 2, 2025
Published to the GitHub Advisory Database Dec 3, 2025
Reviewed Dec 3, 2025

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
High
User interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(11th percentile)

Weaknesses

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Learn more on MITRE.

CVE ID

CVE-2025-66468

GHSA ID

GHSA-424m-fj2q-g7vg

Source code

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