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CriticalVulnerabilityCVE-2026-44179updated 28 Oct 2026, 16:21 UTC

XWiki Remote Macros lets page editors run code on the wiki server

A user who can only edit normal wiki pages can hide special commands in a page title or excerpt. When that page is included elsewhere, the commands run with the server's privileges, so the whole wiki can be taken over.

Fixed in XWiki Remote Macros 1.14.5Official source
SeverityCriticalCVSS 9.9 of 10
Being exploited?UnclearNo reports either way yet
Fix available?YesXWiki Remote Macros 1.14.5 · since 28 Oct 2026
How sure is this?Official sourceBacked by an official source

How the attack works simplified

  1. 1Editor with basic rightsEdits a page, no script rights needed
  2. 2Malicious title or excerptContains hidden macro syntax
  3. 3excerpt-include runsIncluded page is rendered unescaped
  4. 4Code runs with macro rightsExecutes on the wiki server
  5. ResultAttacker controls the XWiki installation

What happened

In XWiki Remote Macros 1.13 through 1.14.4, the excerpt-include macro does not escape included page titles and runs excerpt content with the macro's rights, enabling syntax injection and remote code execution.

Why it is dangerous: Anyone with ordinary page-edit rights can compromise the entire XWiki installation, affecting confidentiality, integrity and availability. Organizations migrating content from Confluence using this macro are at risk.

Are you affected?

You are affected if you run XWiki with the Remote Macros extension from version 1.13 up to (not including) 1.14.5 and use the excerpt-include macro.

XWiki Remote Macros 1.13 through 1.14.4

What to do

  1. Update XWiki Remote Macros to version 1.14.5 or later
  2. If you cannot update right away, review pages that use excerpt-include and restrict page-edit rights
  3. Check existing pages for unexpected macro syntax in titles or excerpts

Timeline

  1. 28 Oct 2026, 16:17 UTC
    Publicly disclosed
  2. 28 Oct 2026, 16:17 UTC
    Reported by NVD · NVD
  3. 28 Oct 2026, 16:21 UTC
    Picked up by Zero Radar

Sources 1 report, oldest first

Official vendor, government CERT or advisory database

Technical details

ID
CVE-2026-44179
CVSS
9.9 / 10
Disclosed
28 Oct 2026, 16:17 UTC
On Zero Radar
28 Oct 2026, 16:21 UTC (5 min after disclosure)
Last change
28 Oct 2026, 16:21 UTC

The plain-language parts and the attack diagram were written by an AI model (anthropic/claude-haiku-5.5) from the sources above. Facts like versions, exploitation and dates come from the sources themselves. How Zero Radar works

XWiki Remote Macros lets page editors run code on the wiki server · Zero Radar