Is CVE-2025-66473 actively exploited?

CVE-2025-66473 has no public evidence of in-the-wild exploitation as of 2025-12-19.

What is the CVSS score for CVE-2025-66473?

CVE-2025-66473 has a CVSS score of 8.7 (HIGH severity). Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X.

How do I patch CVE-2025-66473?

Patch guidance is available from xwiki security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2025-66473.

Which products are affected by CVE-2025-66473?

3 products: xwiki xwiki, xwiki xwiki, xwiki xwiki.

Fix CVE-2025-66473 - HIGH xwiki xwiki

Description

XWiki is an open-source wiki software platform. Versions 16.10.10 and below, 17.0.0-rc-1 through 17.4.3 and 17.5.0-rc-1 through 17.6.0 contain a REST API which doesn't enforce any limits for the number of items that can be requested in a single request at the moment. Depending on the number of pages in the wiki and the memory configuration, this can lead to slowness and unavailability of the wiki. As an example, the /rest/wikis/xwiki/spaces resource returns all spaces on the wiki by default, which are basically all pages. This issue is fixed in versions 17.4.4 and 16.10.11.

CVSS Metrics

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Confidentiality: undefined
Integrity: undefined
Availability: undefined
Weaknesses: CWE-770

Metadata

Primary Vendor: XWIKI
Published: 12/10/2025
Last Modified: 12/19/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2025-66473

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary