EUVD-2025-10773

Comprehensive Technical Analysis of EUVD-2025-10773

1. Vulnerability Assessment and Severity Evaluation

The vulnerability described in EUVD-2025-10773 pertains to a Deserialization of Untrusted Data issue in the "TableOn – WordPress Posts Table Filterable" plugin, which allows for Object Injection. This vulnerability is particularly severe due to its high base score of 9.8 according to CVSS 3.1. The vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H indicates the following:

• Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
• Attack Complexity (AC): Low (L) - The attack requires minimal skill or resources.
• Privileges Required (PR): None (N) - No special privileges are required to exploit the vulnerability.
• User Interaction (UI): None (N) - No user interaction is required for the attack to succeed.
• Scope (S): Unchanged (U) - The vulnerability does not change the security scope.
• Confidentiality (C): High (H) - The vulnerability results in a high impact on confidentiality.
• Integrity (I): High (H) - The vulnerability results in a high impact on integrity.
• Availability (A): High (H) - The vulnerability results in a high impact on availability.

Given these metrics, the severity of this vulnerability is critical, posing significant risks to the confidentiality, integrity, and availability of affected systems.

2. Potential Attack Vectors and Exploitation Methods

The primary attack vector for this vulnerability is the deserialization of untrusted data, which can lead to Object Injection. An attacker could exploit this by:

• Crafting Malicious Input: Sending specially crafted input to the vulnerable plugin that, when deserialized, results in the execution of arbitrary code.
• Remote Code Execution (RCE): By injecting malicious objects, an attacker could potentially execute arbitrary code on the server, leading to full system compromise.
• Data Exfiltration: The attacker could manipulate the deserialization process to exfiltrate sensitive data from the server.

3. Affected Systems and Software Versions

The vulnerability affects the "TableOn – WordPress Posts Table Filterable" plugin versions from n/a through 1.0.2. Any WordPress site using this plugin within the specified version range is at risk.

4. Recommended Mitigation Strategies

To mitigate the risks associated with this vulnerability, the following strategies are recommended:

• Immediate Patching: Upgrade the "TableOn – WordPress Posts Table Filterable" plugin to a version that addresses this vulnerability. If a patch is not yet available, consider disabling the plugin until a fix is released.
• Input Validation: Implement strict input validation and sanitization to ensure that only trusted data is deserialized.
• Use of Security Plugins: Deploy security plugins that can detect and block malicious input, such as Wordfence or Sucuri.
• Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security issues.
• Network Segmentation: Implement network segmentation to limit the spread of potential attacks.

5. Impact on European Cybersecurity Landscape

The impact of this vulnerability on the European cybersecurity landscape is significant due to the widespread use of WordPress and its plugins. Many organizations, including small businesses, educational institutions, and government agencies, rely on WordPress for their web presence. The exploitation of this vulnerability could lead to data breaches, financial losses, and reputational damage.

6. Technical Details for Security Professionals

For security professionals, the following technical details are crucial:

• Vulnerability Type: Deserialization of Untrusted Data leading to Object Injection.
• Affected Component: "TableOn – WordPress Posts Table Filterable" plugin.
• Exploitation: The vulnerability can be exploited by sending crafted input that, when deserialized, results in the injection of malicious objects.
• Detection: Monitor for unusual network traffic patterns and anomalies in server logs that may indicate exploitation attempts.
• Response: Implement incident response plans that include isolating affected systems, patching vulnerabilities, and conducting forensic analysis to determine the extent of the compromise.

Conclusion

The vulnerability described in EUVD-2025-10773 is critical and requires immediate attention from cybersecurity professionals. By understanding the attack vectors, affected systems, and recommended mitigation strategies, organizations can take proactive steps to protect their WordPress installations and mitigate the risks associated with this vulnerability. Regular updates, strict input validation, and robust security measures are essential to safeguarding against such threats.