CVE-2026-26000 PUBLISHED

XWiki Platform affected by click-jacking through CSS injection in comments

Assigner: GitHub_M
Reserved: 09.02.2026 Published: 12.02.2026 Updated: 12.02.2026

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Prior to 17.9.0, 17.4.6, and 16.10.13, it's possible using comments to inject CSS that would transform the full wiki in a link area leading to a malicious page. This vulnerability is fixed in 17.9.0, 17.4.6, and 16.10.13.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CVSS Score: 5.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	None
User Interaction	Passive

CVSS 4.0

Product Status

Vendor	xwiki
Product	xwiki-platform
Versions	Version >= 17.5.0, < 17.9.0 is affected Version >= 17.0.0-rc-1, < 17.4.6 is affected Version < 16.10.13 is affected

References

Problem Types

CWE-1021: Improper Restriction of Rendered UI Layers or Frames CWE