Overview
CVE-2025-0421 describes an Improper Restriction of Rendered UI Layers or Frames vulnerability found in Shopside Software Technologies Inc.’s Shopside e-commerce platform. Specifically, it allows for iFrame Overlay, potentially enabling attackers to inject malicious content or manipulate the user interface. This vulnerability affects Shopside versions up to and including 05022025.
Technical Details
The vulnerability lies in the insufficient restriction of how Shopside handles iFrames. An attacker could potentially inject a malicious iFrame that overlays legitimate UI elements within the Shopside application. This overlay could be used for various malicious purposes, such as:
- Clickjacking: Tricking users into clicking on hidden elements within the malicious iFrame.
- Phishing: Displaying a fake login form or other sensitive data input fields within the iFrame.
- Redirection: Redirecting users to malicious websites without their knowledge.
- UI Redressing: Masking legitimate UI elements with deceptive content to trick users into performing unintended actions.
The root cause is a lack of proper input validation and output encoding when handling iFrame sources and attributes within the Shopside application.
CVSS Analysis
The Common Vulnerability Scoring System (CVSS) provides a standardized way to assess the severity of vulnerabilities. CVE-2025-0421 has a CVSS score of 4.7, classified as MEDIUM severity. This score reflects the following factors:
- Attack Vector (AV): Network (N) – The vulnerability can be exploited over a network.
- Attack Complexity (AC): Low (L) – Exploitation requires minimal effort.
- Privileges Required (PR): None (N) – No privileges are required to exploit the vulnerability.
- User Interaction (UI): Required (R) – User interaction is required to trigger the vulnerability (e.g., clicking on a malicious link).
- Scope (S): Unchanged (U) – An exploited vulnerability can only affect resources managed by the same security authority.
- Confidentiality Impact (C): None (N)
- Integrity Impact (I): Low (L) – There is limited modification to the system.
- Availability Impact (A): None (N)
While the CVSS score is medium, the potential for user manipulation and data compromise should not be underestimated.
Possible Impact
A successful exploitation of CVE-2025-0421 can have several negative consequences:
- Data Theft: Attackers could steal sensitive user information, such as login credentials or payment details, through phishing attacks.
- Reputation Damage: A successful attack can damage the reputation of the Shopside store and erode customer trust.
- Financial Loss: Fraudulent transactions and incident response costs can lead to financial losses.
- Website Defacement: Attackers could deface the website, displaying malicious content to all visitors.
Mitigation or Patch Steps
To mitigate the risk posed by CVE-2025-0421, Shopside users should take the following steps:
- Apply the Latest Patch: Check for and install the latest security patch released by Shopside Software Technologies Inc. This is the most effective way to address the underlying vulnerability.
- Input Validation: Implement strict input validation on all data fields that handle URLs or HTML content, particularly those related to iFrames.
- Content Security Policy (CSP): Implement a robust Content Security Policy (CSP) to restrict the sources from which the application can load resources, including iFrames. Configure CSP to only allow trusted domains for iFrame sources.
- Regular Security Audits: Conduct regular security audits and penetration testing to identify and address potential vulnerabilities proactively.
- User Awareness Training: Educate users about the risks of clickjacking and phishing attacks and how to identify suspicious links or content.
Contact Shopside Software Technologies Inc. support for specific patching instructions and guidance.
