CVE-2025-23025 is a critical vulnerability affecting the XWiki Platform, a widely used generic wiki platform that provides runtime services for applications built on top of it. This vulnerability allows users with only edit rights to join a realtime editing session where other users may have elevated programming access rights. The issue originates from the Realtime WYSIWYG Editor extension, which was previously marked as experimental and not recommended. However, it has since become enabled by default in versions starting from XWiki 16.9.0.
The vulnerability permits an attacker with edit rights to insert script rendering macros in a realtime session, which are then executed for other users who possess scripting capabilities. This could lead to unauthorized access and privilege escalation. The vulnerability has been patched in versions 15.10.2, 16.4.1, and 16.6.0-rc-1. Organizations using affected versions are strongly advised to upgrade to mitigate potential risks.
Organizations unable to upgrade can disable the realtime WYSIWYG editing feature by disabling the 'xwiki-realtime' CKEditor plugin from the WYSIWYG editor administration section or uninstalling the Realtime WYSIWYG Editor extension.
Given the critical severity of this vulnerability, with a CVSS score of 9.0, organizations should prioritize patching immediately. The risk to organizations includes potential unauthorized access and exploitation of sensitive information, thus necessitating swift action.
This vulnerability has been classified under CWE-862, which relates to missing authorization. The implications of such vulnerabilities can be severe, making it essential for organizations to recognize the importance of timely updates and security management practices.
Vulnerability Details
XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. The Realtime WYSIWYG Editor extension was experimental and not recommended in the versions affected by this vulnerability. Users can join a realtime editing session where others may have script or programming access rights, allowing them to insert script rendering macros that are executed for users with such rights.
The CVSS score for this vulnerability is 9.0, indicating a critical severity level. The vulnerability affects XWiki versions 13.9 through 15.10.12 and from 16.0.0 to 16.4.1, as well as specific versions of 16.5.0.
Technical Analysis
The root cause of this vulnerability lies in the improper handling of user permissions within the realtime WYSIWYG editing feature. Users with edit permissions can enter sessions where more privileged users are present. The attack vector is network-based, with low attack complexity, requiring low privileges and user interaction. The confidentiality, integrity, and availability impacts are all classified as high.
Risk & Impact Analysis
The real-world risk of this vulnerability is significant, as it allows unauthorized users to execute scripts within the context of other users' sessions, leading to potential exploitation of sensitive information and elevated privileges. Organizations must consider the blast radius of such an attack, especially within collaborative environments where multiple users might be editing simultaneously. The urgency for organizations to address this vulnerability is amplified by the critical CVSS score indicating the high likelihood of exploitation.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of XWiki include all versions from 13.9 to 15.10.12 and from 16.0.0 to 16.4.1, as well as specific versions of 16.5.0.
Mitigation & Remediation
Organizations should prioritize patching immediately to address this critical vulnerability. Users are encouraged to upgrade to the latest versions of XWiki, specifically 15.10.2, 16.4.1, or 16.6.0-rc-1. Alternatively, users unable to upgrade may consider disabling the realtime WYSIWYG editing feature by disabling the 'xwiki-realtime' CKEditor plugin from the WYSIWYG editor administration section or uninstalling the Realtime WYSIWYG Editor extension.
Continuous penetration testing is recommended to validate the effectiveness of remediations.
Detection Guidance
Organizations should monitor logs for indicators of unauthorized access, including unusual user sessions or unauthorized script execution. Behavioral anomalies in the editing sessions should be investigated to identify potential exploitation attempts.
AppSecure Threat Intelligence Insight
This vulnerability highlights the critical need for robust user access controls and continuous monitoring in collaborative environments. Security teams should be aware of the potential for privilege escalation through seemingly innocuous user roles. Organizations can benefit from reviewing their penetration testing methodology to identify similar weaknesses in their applications.
The trend of vulnerabilities associated with user permissions underscores the importance of monitoring user actions and implementing effective user management strategies. Organizations should consider adopting a vulnerability management program to proactively address such risks.
Overall, the strategic takeaway is to prioritize security in development processes and ensure that security assessments are an integral part of the software lifecycle.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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