PT-2026-32971 · Xwiki · Xwiki Platform

Published 2025-12-02 · Updated 2026-05-04 · CVE-2026-40105

Positive Technologies (AI Summary)

CVSS v4.0

6.5

Medium

Base vector

AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

Name of the Vulnerable Software and Affected Versions XWiki Platform versions 10.4-rc-1 through 16.10.15 XWiki Platform versions 17.0.0-rc-1 through 17.4.7 XWiki Platform versions 17.5.0-rc-1 through 17.10.0

Description A reflected cross-site scripting (XSS) issue in the comparison view between page revisions allows the execution of JavaScript code in the user's browser. If an administrator is affected, the confidentiality, integrity, and availability of the entire instance may be compromised. The issue is caused by improper escaping of URL parameters.

Recommendations For 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, apply the patch manually to templates/changesdoc.vm in the deployed WAR.

Fix

XSS

Weakness Enumeration

CWE-80

Related Identifiers

BDU:2026-05573

CVE-2026-40105

GHSA-W4FJ-87J5-F25C

Affected Products

Xwiki Platform

References · 9

• https://github.com/xwiki/xwiki-platform/commit/3c8a2ec985641367015c2db937574fcd360c788c · Patch
• https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-w4fj-87j5-f25c · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-w4fj-87j5-f25c · Vendor Advisory
• https://jira.xwiki.org/browse/XWIKI-23472 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-40105 · Security Note
• https://bdu.fstec.ru/vul/2026-05573 · Security Note
• https://github.com/xwiki/xwiki-platform · Note
• https://twitter.com/pdnuclei_bot/status/2051255556720165307 · Twitter Post
• https://twitter.com/CVEnew/status/2044338858062676063 · Twitter Post