CVE-2026-23730: Medium Vulnerability in WeGIA

CVE-2026-23730 refers to a medium-severity Open Redirect vulnerability present in WeGIA, a web manager for charitable institutions. This vulnerability allows attackers to manipulate the nextPage parameter in the /WeGIA/controle/control.php endpoint. Specifically, when combined with metodo=listarTodos and nomeClasse=ProdutoControle, the application fails to properly validate or restrict the nextPage parameter. As a result, users can be redirected to arbitrary external websites, enabling potential phishing attacks, credential theft, and malware distribution while leveraging the trusted WeGIA domain. Organizations are urged to prioritize patching this vulnerability to mitigate risks.

The vulnerability has a CVSS 4.8 score, indicating a medium severity level, which highlights the importance of addressing the issue promptly. The application’s lack of validation on user-supplied input can expose organizations to significant security threats, especially since the attack vector is network-based and requires low complexity to exploit. The urgency for defenders is clear; organizations should prioritize patching immediately.

As of the latest updates, this vulnerability is not listed in the KEV catalog, indicating no known active exploitation. However, organizations should remain vigilant as the absence of active exploitation does not diminish the potential risks associated with the vulnerability.

In summary, the Open Redirect vulnerability in WeGIA poses a risk to organizations that could be exploited for malicious purposes. The application is vulnerable prior to version 3.6.2, and remediation should be a part of the organization's immediate security response.

The official description of CVE-2026-23730 indicates that an Open Redirect vulnerability exists in WeGIA prior to version 3.6.2. The vulnerability type is classified as Open Redirect, and is associated with CWE-601. The CVSS score of 4.8 reflects a medium severity level, which is crucial for risk assessment for organizations using this application.

The affected product is WeGIA, specifically versions prior to 3.6.2. This vulnerability was published on January 16, 2026, and the last modification was on January 30, 2026. Organizations should take note of these details to ensure their systems are up-to-date.

The root cause of this vulnerability lies in the application's failure to validate external redirects through the nextPage parameter. The attack vector is network-based, allowing attackers to craft malicious URLs. The attack complexity is classified as low, meaning that an attacker with minimal technical skills can exploit this vulnerability. While the privileges required are low, user interaction is necessary when an unsuspecting user clicks on the crafted link.

The confidentiality impact is rated as low, as attackers may not gain access to sensitive data directly. However, the integrity impact is also low, meaning that no data manipulation occurs. The availability impact is rated as none, indicating no disruption to services. This means that the primary risk is the ability to redirect users to potentially harmful external sites.

The risks associated with this vulnerability include potential phishing attacks, where users might be misled into providing sensitive information, leading to credential theft. With the trusted WeGIA domain at play, the chances of success for such attacks increase significantly. Organizations should assess their current exposure and implement robust security measures to protect their users.

This vulnerability's potential for abuse can have far-reaching implications, particularly in environments where WeGIA is integrated with other systems or services. The urgency for remediation is underscored by the CVSS score and the potential for exploitation in social engineering schemes.

The Open Redirect vulnerability affects all versions of WeGIA prior to 3.6.2. Organizations using this software should ensure they are upgraded to the latest version to mitigate this risk.

Organizations should immediately update to WeGIA version 3.6.2 to remediate this vulnerability. In addition to applying the patch, it is advisable to perform security testing to validate the effectiveness of the remediation. Regular security assessments can help identify similar weaknesses in the future, ensuring that security measures remain effective.

For further guidance, organizations can refer to our penetration testing services that can help identify potential vulnerabilities in their systems.

To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual redirect behavior. Behavioral anomalies, such as unexpected user sessions or unusual access patterns, can be indicators of attempted exploitation. Additionally, network signatures can be employed to identify malicious requests targeting the WeGIA application.

The discovery of this Open Redirect vulnerability in WeGIA highlights the importance of input validation in web applications. Security teams should take this opportunity to conduct a thorough review of their applications for similar vulnerabilities. Ensuring robust input validation can significantly reduce the risk of phishing and other social engineering attacks.

Organizations are encouraged to integrate security practices into their development lifecycle, which can lead to the early identification of potential vulnerabilities. For further insights into application security best practices, organizations can explore our vulnerability management program and consider implementing continuous security testing.

To stay ahead of threats and vulnerabilities, organizations should also consider engaging in penetration testing methodologies that align with industry standards.

By maintaining a proactive approach to vulnerability management and remediation, organizations can significantly enhance their security posture.