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CVE-2025-66473

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

Published: Dec 10, 2025Updated: Dec 19, 2025 Sources: CVE List NVD GHSA BDUCWE-770
7.5HIGH
NVD MITRE
EPSS Score
0.4%
Top 66.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-770

Affected Products

xwiki
oss-project·FRaka xwiki-commons, xwiki-platform
xwikiOn-premWeb App
Web & CMS Plugins / cms-core
xwiki-platformOn-premWeb App
Web & CMS Plugins / cms-core
Maven
package-ecosystem
org.xwiki.platform:xwiki-platform-rest-server
OSS Libraries
Сообщество свободного программного обеспечения
oss-projectaka fsf
XWiki PlatformOn-premWeb App
Web & CMS Plugins / cms-core

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://github.com/xwiki/xwiki-platform/commit/e3c47745195fb445b054537be86f5c01ee69558b
github.com
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-cc84-q3v3-mhgf
github.com
https://jira.xwiki.org/browse/XWIKI-23355
jira.xwiki.org
and 2 more references View all →

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