Horizon Alert
Summary of the vulnerability and why it matters
XWiki Platform, a wiki platform, has a vulnerability that allows unauthenticated users to execute arbitrary code. This flaw can affect the confidentiality, integrity, and availability of the entire XWiki installation. The vulnerability exists within the `SolrSearch` functionality.
- XWiki Platform's `SolrSearch` functionality.
- Allows unauthenticated remote code execution.
- Impacts data confidentiality, integrity, and availability.
Attack Path
How an attacker could exploit the issue
An attacker can exploit a vulnerability in the XWiki Platform to execute arbitrary code remotely. This attack is possible without authentication, impacting the confidentiality, integrity, and availability of XWiki installations. The vulnerability is triggered through a specific request to the `SolrSearch` functionality.
- Exposure condition: Publicly accessible `SolrSearch` endpoint.
- Attacker starting point: Unauthenticated access.
- Trigger and result: Malicious request leads to remote code execution.
Live Threat
Current exploitation, exposure, and threat context
The XWiki Platform contains a critical vulnerability that allows unauthenticated remote code execution. Attackers can exploit this by sending a specially crafted request to the `SolrSearch` function. Successful exploitation could lead to a complete compromise of the XWiki installation, affecting the confidentiality, integrity, and availability of all data and systems. Organizations are advised to treat this vulnerability with high urgency due to its severe impact and ease of exploitation.
- Likely attacker skill level: Low
- Required access or conditions: None (unauthenticated)
- Business risk or urgency: Critical
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
The organization should take immediate action to address a critical vulnerability in XWiki Platform that allows unauthenticated remote code execution. This vulnerability impacts the confidentiality, integrity, and availability of XWiki installations. The exploitation can occur through a request to `SolrSearch`, and the instance is vulnerable if a specific output is observed. Mitigation involves upgrading to patched versions or applying manual configuration changes.
- Identify all exposed XWiki assets.
- Reduce exposure or isolate affected systems.
- Apply vendor fix, verify, and monitor.
