CVE-2025-27400
Magento vulnerable to stored XSS in theme config fields
Description
Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform with a high level of backward compatibility. Versions prior to 20.12.3 and 20.13.0 contain a vulnerability that allows script execution in the admin panel which could lead to cross-site scripting against authenticated admin users. The attack requires an admin user with configuration access, so in practicality it is not very likely to be useful given that a user with this level of access is probably already a full admin. Versions 20.12.3 and 20.13.0 contain a patch for the issue.
INFO
Published Date :
Feb. 28, 2025, 4:15 p.m.
Last Modified :
Aug. 26, 2025, 8:15 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source | 
|---|---|---|---|---|---|---|
| CVSS 3.1 | LOW | [email protected] | ||||
| CVSS 3.1 | LOW | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | 
Solution
- Update Magento LTS to version 20.12.3 or higher.
- Verify the installed version is patched against script execution.
References to Advisories, Solutions, and Tools
                                            Here, you will find a curated list of external links that provide in-depth
                                            information, practical solutions, and valuable tools related to
                                            CVE-2025-27400.
                                        
CWE - Common Weakness Enumeration
            While CVE identifies
            specific instances of vulnerabilities, CWE categorizes the common flaws or
            weaknesses that can lead to vulnerabilities. CVE-2025-27400 is
            associated with the following CWEs:
        
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
            (CAPEC)
            stores attack patterns, which are descriptions of the common attributes and
            approaches employed by adversaries to exploit the CVE-2025-27400
            weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
			The following list is the news that have been mention
			CVE-2025-27400 vulnerability anywhere in the article.
		
                The following table lists the changes that have been made to the
                CVE-2025-27400 vulnerability over time.
            
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
- 
                            CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0Aug. 26, 2025 Action Type Old Value New Value Removed CVSS V3.1 AV:A/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:L Removed CWE CWE-79 
- 
                            CVE Modified by [email protected]Jun. 16, 2025 Action Type Old Value New Value Changed Description Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform with a high level of backward compatibility. Versions prior to 20.12.3 and 20.13.1 contain a vulnerability that allows script execution in the admin panel which could lead to cross-site scripting against authenticated admin users. The attack requires an admin user with configuration access, so in practicality it is not very likely to be useful given that a user with this level of access is probably already a full admin. Versions 20.12.3 and 20.13.1 contain a patch for the issue. Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform with a high level of backward compatibility. Versions prior to 20.12.3 and 20.13.0 contain a vulnerability that allows script execution in the admin panel which could lead to cross-site scripting against authenticated admin users. The attack requires an admin user with configuration access, so in practicality it is not very likely to be useful given that a user with this level of access is probably already a full admin. Versions 20.12.3 and 20.13.0 contain a patch for the issue. 
- 
                            New CVE Received by [email protected]Feb. 28, 2025 Action Type Old Value New Value Added Description Magento Long Term Support (LTS) is an unofficial, community-driven project provides an alternative to the Magento Community Edition e-commerce platform with a high level of backward compatibility. Versions prior to 20.12.3 and 20.13.1 contain a vulnerability that allows script execution in the admin panel which could lead to cross-site scripting against authenticated admin users. The attack requires an admin user with configuration access, so in practicality it is not very likely to be useful given that a user with this level of access is probably already a full admin. Versions 20.12.3 and 20.13.1 contain a patch for the issue. Added CVSS V3.1 AV:A/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:L Added CWE CWE-79 Added Reference https://github.com/OpenMage/magento-lts/commit/d307e5bf75729a2347dde0952fe9fd9fcd9c6aea Added Reference https://github.com/OpenMage/magento-lts/releases/tag/v20.12.3 Added Reference https://github.com/OpenMage/magento-lts/releases/tag/v20.13.0 Added Reference https://github.com/OpenMage/magento-lts/security/advisories/GHSA-5pxh-89cx-4668 
- 
                            CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0Feb. 28, 2025 Action Type Old Value New Value Added CVSS V3.1 AV:A/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:L Added CWE CWE-79 
 
                         
                         
                         
                                             
                                            