A stored cross-site scripting (XSS) vulnerability exists in Craft Commerce, an ecommerce platform for Craft CMS. This vulnerability allows attackers to execute malicious JavaScript in an administrator’s browser, leading to potential exploitation. The affected versions include 4.0.0-RC1 to 4.10.0 and 5.0.0 to 5.5.1. The vulnerability is due to improper sanitization of the 'Address Line 1' field in Inventory Locations before it is displayed in the admin panel. This issue has been patched in versions 4.10.1 and 5.5.2.
The CVSS score for this vulnerability is 6.1, indicating a medium severity. The vulnerability's attack vector is classified as network-based, with low attack complexity. However, it requires high privileges and passive user interaction, making it critical for organizations using Craft Commerce to address this promptly.
Risk to organizations includes unauthorized access to administrative functionalities and the potential for data theft or manipulation through the execution of malicious scripts. Organizations should prioritize patching immediately to mitigate this risk.
Currently, there are no known exploits or public proof of concepts available for this vulnerability, reducing immediate threat concerns. However, the nature of XSS vulnerabilities requires ongoing vigilance and monitoring.
Organizations leveraging Craft Commerce should review their deployment and ensure they are running the latest patched versions to protect against this vulnerability.
Vulnerability Details
The official description from the vendor outlines that this stored XSS vulnerability is present in multiple versions of Craft Commerce. The specific versions affected are from 4.0.0-RC1 to 4.10.0 and from 5.0.0 to 5.5.1. The vulnerability arises from insufficient sanitization of user input for the 'Address Line 1' field in Inventory Locations.
The vulnerability is classified under CWE-79, which pertains to improper neutralization of input during web page generation. Organizations should be aware that this flaw can lead to significant security risks if not addressed in a timely manner.
The CVSS score of 6.1 indicates a medium severity, highlighting the need for organizations to address this in their security patch cycles.
Technical Analysis
The root cause of the vulnerability is the lack of proper input sanitization in the Craft Commerce platform. Attackers may leverage this weakness to inject malicious JavaScript code into the administrative interface, which could then execute when an administrator views the affected page.
The attack vector is network-based, meaning that an attacker can exploit this vulnerability remotely. The attack complexity is low, as it does not require any special conditions to be met beyond the existence of the vulnerability. However, it does require the attacker to have high privileges, which limits the potential impact to systems where such privileges are granted.
User interaction is passive, as the administrator does not need to perform any actions beyond simply accessing the compromised admin panel. The vulnerability has low confidentiality impact, as it does not expose sensitive data, but it has a high integrity impact due to the possibility of executing unauthorized actions through the injected script.
Risk & Impact Analysis
The real-world risk is significant for organizations that depend on Craft Commerce for their ecommerce operations. Attackers exploiting this vulnerability could potentially manipulate the administrative interface, leading to unauthorized transactions or data manipulation.
The blast radius for this vulnerability could extend to any organization using affected versions of Craft Commerce, particularly those with administrative access exposed to the internet. Organizations should assess their exposure and the potential impact on their operations.
Considering the CVSS score and the absence of known exploits, the urgency for remediation can be classified as moderate. Organizations should schedule remediation as part of their security patch management processes.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects all versions of Craft Commerce from 4.0.0-RC1 to 4.10.0, and from 5.0.0 to 5.5.1. Organizations should upgrade to versions 4.10.1 or 5.5.2 to remediate this issue.
Mitigation & Remediation
To mitigate this vulnerability, organizations should patch their installations of Craft Commerce to the latest versions, specifically 4.10.1 or 5.5.2. If immediate patching is not possible, consider implementing workarounds such as input validation and sanitization on the 'Address Line 1' field in Inventory Locations.
Additionally, organizations should conduct regular security assessments and code reviews to identify and remediate similar vulnerabilities. For further guidance on securing applications, organizations can refer to our application security assessment services that provide tailored recommendations.
Detection Guidance
Organizations should monitor their application logs for unusual activities, particularly in the admin panel of Craft Commerce. Look for indicators such as unexpected JavaScript execution or unauthorized changes to inventory locations.
Behavioral anomalies, such as unexpected redirects or UI changes, should also be investigated. Implementing network signatures that detect unusual access patterns can further strengthen security.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2026-25490 lies in its manifestation of a broader trend in web application security, where improper input handling can lead to severe vulnerabilities. Organizations should prioritize implementing secure coding practices to prevent similar vulnerabilities in the future.
Security teams are encouraged to undertake proactive measures, including security checklists and regular penetration testing to identify and address security weaknesses.
By learning from vulnerabilities like CVE-2026-25490, organizations can enhance their security posture and reduce the likelihood of future exploits.
For additional insights and strategies, organizations may benefit from our vulnerability management program resources tailored to enhance security frameworks.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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