CVE-2025-66473 - CVE House
Back to Database
Status published High CVE-2025-66473

XWiki's REST APIs don't enforce any limits, leading to unavailability and OOM in large wikis

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2025-66473

Credits & Attribution

No credits recorded in the NVD database.

References

More from xwiki

View All →
CVE-2025-66474
XWiki vulnerable to remote code execution through insufficient protection against {{/html}} injection
High 8.7
CVE-2025-66472
XWiki vulnerable to a reflected XSS via xredirect parameter in DeleteApplication
Medium 6.5
CVE-2025-58049
XWiki PDF export jobs store sensitive cookies unencrypted in job statuses
Medium 5.8
CVE-2025-55749
The XWiki Jetty package (XJetty) allows accessing any application file through URL
High 8.7
CVE-2025-55748
XWiki Platform's configuration files can be accessed through jsx and sx endpoints
Critical 9.3

Affected Vendor

Affected Software

xwiki-platform
Vulnerable Versions:
< 16.10.11, >= 17.0.0-rc-1, < 17.4.4, >= 17.5.0-rc-1, < 17.7.0-rc-1

Timeline

Official Publish: December 10th, 2025
Last Modified: December 11th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

Weaknesses (CWE)

CWE-770

MITRE ATT&CK TTPs

T1499 Endpoint Denial of Service
Impact
T1498 Network Denial of Service
Impact
T1190 Exploit Public-Facing Application
Initial Access
T1562 Impair Defenses
Defense Evasion
T1046 Network Service Discovery
Discovery