CVE-2025-26483: Dell PowerFlex Manager Open Redirect Vulnerability

Dell PowerFlex Manager versions 4.6.2 and prior are vulnerable to an open redirect vulnerability (CVE-2025-26483). An unauthenticated attacker can exploit this flaw to redirect a targeted application user to an arbitrary web URL. This vulnerability poses a significant risk, as attackers can leverage it to conduct phishing attacks, tricking users into divulging sensitive information by redirecting them to malicious websites disguised as legitimate resources. This affects environments using PowerFlex Manager to manage their Dell infrastructure, potentially impacting a wide range of organizations.

Attack Chain

1. The attacker crafts a malicious URL containing a specially crafted redirect parameter targeting a vulnerable PowerFlex Manager endpoint.
2. The attacker distributes the malicious URL via phishing emails or other social engineering techniques, targeting users of the PowerFlex Manager application.
3. The unsuspecting user clicks on the malicious URL.
4. The user’s browser sends a request to the vulnerable PowerFlex Manager endpoint, including the attacker-controlled redirect parameter.
5. The PowerFlex Manager application processes the request and generates an HTTP redirect response.
6. The HTTP redirect response instructs the user’s browser to navigate to the URL specified in the attacker-controlled redirect parameter.
7. The user’s browser automatically redirects to the attacker-specified URL, which could be a phishing page designed to steal credentials or other sensitive information.

Impact

Successful exploitation of this open redirect vulnerability (CVE-2025-26483) can lead to users being redirected to phishing websites. Attackers could leverage this to harvest user credentials, sensitive data, or even deliver malware. The impact includes potential data breaches, financial losses, and reputational damage for organizations using vulnerable versions of Dell PowerFlex Manager. While the exact number of potential victims is unknown, all organizations using affected versions of PowerFlex Manager are at risk.

Recommendation

• Upgrade Dell PowerFlex Manager to a version beyond 4.6.2 to patch CVE-2025-26483.
• Implement input validation and sanitization on URL parameters within web applications to prevent open redirect vulnerabilities; see the example rule Detect Open Redirect Vulnerability Attempt.
• Educate users about the risks of phishing attacks and encourage them to verify the legitimacy of URLs before clicking on them, especially those received via email.
• Monitor web server logs for suspicious redirect activity, such as redirects to unusual or untrusted domains, using a rule like Detect Open Redirect - Unusual Redirect Target.