SB2026050584 - Improper Restriction of Rendered UI Layers or Frames in XWiki platform
Published: May 5, 2026
Security Bulletin ID
SB2026050584
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Restriction of Rendered UI Layers or Frames (CVE-ID: CVE-2026-26000)
CWE-ID: CWE-1021 - Improper Restriction of Rendered UI Layers or Frames
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform click-jacking attacks.
The vulnerability exists due to improper restriction of rendered ui layers or frames in comments when rendering injected CSS. A remote attacker can inject CSS in comments to perform click-jacking attacks.
User interaction is required for a victim to click the crafted link area.
Remediation
Install update from vendor's website.