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CVE-2023-34466: XWiki Platform's tags on non-viewable pages can be revealed to users

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-06-23 · updated 2026-06-17
• Weakness: CWE-200

Description

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Starting in version 5.0-milestone-1 and prior to versions 14.4.8, 14.10.4, and 15.0-rc-1, tags from pages not viewable to the current user are leaked by the tags API. This information can also be exploited to infer the document reference of non-viewable pages. This vulnerability has been patched in XWiki 14.4.8, 14.10.4, and 15.0-rc-1.

Affected products

• xwiki-platform: from 5.0.1 before 14.4.8; from 14.10 before 14.10.4; 5.0-milestone1 — fixed in 14.10.4, 14.4.8

How to fix

Upgrade to a fixed version: xwiki-platform 14.10.4, 14.4.8. Check the vendor advisory for mitigations.

References

• https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-7f2f-pcv3-j2r7
• https://jira.xwiki.org/browse/XWIKI-20002
• https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-7f2f-pcv3-j2r7
• https://jira.xwiki.org/browse/XWIKI-20002

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