THREATPORT/VULNERABILITY/CVE-2025-51991
HIGH SEVERITY

CVE-2025-51991

Xwiki vulnerability

CVSS
8.8
EPSS
3.6%
EPSS pct
88th
Exploited
No known
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.
Affected vendor
Xwiki
Affected product
Xwiki
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-79 — Cross-Site Scripting (XSS)
  • CWE-94 — Code Injection
Published
2025-08-20

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 3.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2025-51991

  • Confirm whether Xwiki Xwiki is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2025-51991.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2025-51991

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