Is CVE-2025-51991 actively exploited?

CVE-2025-51991 has no public evidence of in-the-wild exploitation as of 2025-09-11.

What is the CVSS score for CVE-2025-51991?

CVE-2025-51991 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2025-51991?

Patch guidance is available from xwiki security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-51991.

Fix CVE-2025-51991 - HIGH xwiki xwiki

Description

XWiki through version 17.3.0 is vulnerable to Server-Side Template Injection (SSTI) in the Administration interface, specifically within the HTTP Meta Info field of the Global Preferences Presentation section. An authenticated administrator can inject crafted Apache Velocity template code, which is rendered on the server side without proper validation or sandboxing. This enables the execution of arbitrary template logic, which may expose internal server information or, in specific configurations, lead to further exploitation such as remote code execution or sensitive data leakage. The vulnerability resides in improper handling of dynamic template rendering within user-supplied configuration fields.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-79 · Cross-site Scripting (XSS)CWE-94 · Code Injection

Metadata

Primary Vendor: XWIKI
Published: 8/20/2025
Last Modified: 9/11/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2025-51991

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary