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TI-2026-28931 Aliases CVE-2026-40105GHSA-w4fj-87j5-f25c

XWiki has Reflected Cross-Site Scripting (XSS) in its page history compare functionality

Priority LOW 30CWE-80Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Cross-site scripting
Confidentiality · integrity · availability
None · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-80.

Summary

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Versions 10.4-rc-1, through 16.10.15, 17.0.0-rc-1, through 17.4.7 and 17.5.0-rc-1 through 17.10.0 contain a reflected cross-site scripting vulnerability (XSS) in the comparison view between revisions of a page allows executing JavaScript code in the user's browser. If the current user is an admin, this can not only affect the current user but also the confidentiality, integrity and availability of the whole XWiki instance. If developers are unable to update immediately, they can apply the patch manually to templates/changesdoc.vm in the deployed WAR.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00549 46th percentileScored 2026-11-07
Fix Fixed xwiki-platform (xwiki): 16.10.16, 17.4.8, 17.10.1org.xwiki.platform:xwiki-platform-web-templates (Maven): 16.10.16, 17.4.8, 17.10.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
XWikixwiki-platform10.4-rc-1 to before 16.10.16; 17.0.0-rc-1 to before 17.4.8; 17.5.0-rc-1 to before 17.10.116.10.16, 17.4.8, 17.10.1Patch availableCNA
—org.xwiki.platform:xwiki-platform-web-templates (Maven)10.4-rc-1 to before 16.10.1616.10.16Patch availableGHSA-w4fj-87j5-f25c
—org.xwiki.platform:xwiki-platform-web-templates (Maven)17.0.0-rc-1 to before 17.4.817.4.8Patch availableGHSA-w4fj-87j5-f25c
—org.xwiki.platform:xwiki-platform-web-templates (Maven)17.5.0-rc-1 to before 17.10.117.10.1Patch availableGHSA-w4fj-87j5-f25c
  • xwiki-platform VendorXWiki Affected 10.4-rc-1 to before 16.10.16; 17.0.0-rc-1 to before 17.4.8; 17.5.0-rc-1 to before 17.10.1 Fixed in 16.10.16, 17.4.8, 17.10.1 Patch available CNA
  • org.xwiki.platform:xwiki-platform-web-templates (Maven) Vendor— Affected 10.4-rc-1 to before 16.10.16 Fixed in 16.10.16 Patch available GHSA-w4fj-87j5-f25c
  • org.xwiki.platform:xwiki-platform-web-templates (Maven) Vendor— Affected 17.0.0-rc-1 to before 17.4.8 Fixed in 17.4.8 Patch available GHSA-w4fj-87j5-f25c
  • org.xwiki.platform:xwiki-platform-web-templates (Maven) Vendor— Affected 17.5.0-rc-1 to before 17.10.1 Fixed in 17.10.1 Patch available GHSA-w4fj-87j5-f25c

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*10.4 to before 16.10.16; 17.0.0 to before 17.4.8; 17.5.0 to before 17.10.1VulnerableXWiki
  • cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:* Versions 10.4 to before 16.10.16; 17.0.0 to before 17.4.8; 17.5.0 to before 17.10.1 Vulnerable ·XWiki

Remediation

  • Fix · CNA xwiki-platform (xwiki) Fixed in 16.10.16, 17.4.8, 17.10.1
  • Fix · GHSA-w4fj-87j5-f25c org.xwiki.platform:xwiki-platform-web-templates (Maven) Fixed in 16.10.16 Advisory →
  • Fix · GHSA-w4fj-87j5-f25c org.xwiki.platform:xwiki-platform-web-templates (Maven) Fixed in 17.4.8 Advisory →
  • Fix · GHSA-w4fj-87j5-f25c org.xwiki.platform:xwiki-platform-web-templates (Maven) Fixed in 17.10.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-40105
  2. 2026-10-03 Alias added: GHSA-w4fj-87j5-f25c
  3. 2026-10-25 EPSS moved to the below the 50th percentile

References

Patch 1

Advisory 3

Other 1

  • TI-2025-18595 Remote code execution as guest via SolrSearchMacros request in xwiki KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-25214 Remote code execution through the section parameter in Administration as guest in XWiki Platform CVSS 3.1CRITICAL 10.0
  • TI-2025-23500 XWiki Platform vulnerable to SQL injection through getdeleteddocuments.vm template sort parameter CVSS 4.0CRITICAL 9.3
  • TI-2025-23979 org.xwiki.platform:xwiki-platform-rest-server allows SQL injection in query endpoint of REST API CVSS 4.0CRITICAL 9.3
  • TI-2024-20829 XWiki Platform: Remote code execution from account via SearchSuggestSourceSheet CVSS 3.1CRITICAL 10.0
  • TI-2024-14375 XWiki Remote Code Execution vulnerability via user registration CVSS 3.1CRITICAL 10.0
See all 247 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences