CVE-2023-26477

CRITICAL

XWiki Platform <13.10.10, <14.9-rc-1, <14.4.6 - Code Injection

Title source: llm

Description

XWiki Platform is a generic wiki platform. Starting in versions 6.3-rc-1 and 6.2.4, it's possible to inject arbitrary wiki syntax including Groovy, Python and Velocity script macros via the `newThemeName` request parameter (URL parameter), in combination with additional parameters. This has been patched in the supported versions 13.10.10, 14.9-rc-1, and 14.4.6. As a workaround, it is possible to edit `FlamingoThemesCode.WebHomeSheet` and manually perform the changes from the patch fixing the issue.

References (3)

[Exploit, Vendor Advisory] https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-x2qm-r4wx-8gpg

[Patch] https://github.com/xwiki/xwiki-platform/commit/ea2e615f50a918802fd60b09ec87aa04bc6ea8e2#diff-e2153fa59f9d92ef67b0afbf27984bd17170921a3b558fac227160003d0dfd2aR283-R284

View Patch ZIP pw:eip

[Exploit, Issue Tracking, Vendor Advisory] https://jira.xwiki.org/browse/XWIKI-19757

Scores

CVSS v3 10.0

EPSS 0.4008

EPSS Percentile 97.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-95 CWE-94

Status published

Products (2)

org.xwiki.platform/xwiki-platform-flamingo-theme-ui 6.2.4 - 13.10.10Maven

xwiki/xwiki 6.2.4 - 13.10.10

Published Mar 02, 2023

Tracked Since Feb 18, 2026