CVE-2020-15252 : Vulnerability Insights and Analysis

In XWiki before version 12.5 and 11.10.6, a vulnerability allows users with specific rights to gain access to the application server Servlet context, potentially leading to arbitrary code execution.

Understanding CVE-2020-15252

This CVE identifies a Remote Code Execution (RCE) vulnerability in XWiki.

What is CVE-2020-15252?

XWiki versions prior to 12.5 and 11.10.6 are susceptible to an exploit where users with SCRIPT rights can access the Servlet context, enabling the execution of arbitrary Java objects and methods, potentially resulting in arbitrary code execution.

The Impact of CVE-2020-15252

The vulnerability has a CVSS base score of 8.5, indicating a high severity issue with significant impacts on confidentiality, integrity, and availability of affected systems.

Technical Details of CVE-2020-15252

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The flaw allows users with specific rights to access the application server Servlet context, potentially leading to arbitrary code execution.

Affected Systems and Versions

Product: xwiki-platform
Vendor: xwiki
Vulnerable Versions:
= 12.0, < 12.5

< 11.10.6

Exploitation Mechanism

The vulnerability can be exploited by users with SCRIPT rights to access the Servlet context and execute arbitrary Java objects and methods.

Mitigation and Prevention

Protecting systems from CVE-2020-15252 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update XWiki to version 12.5 or 11.10.6, where the vulnerability is patched.
Restrict SCRIPT rights to authorized users only.

Long-Term Security Practices

Regularly monitor and audit user permissions and access rights.
Implement network segmentation to limit the impact of potential breaches.

Patching and Updates

Apply security patches promptly to mitigate known vulnerabilities and enhance system security.