CVE-2024-31996 XWiki Commons missing escaping of `{` in Velocity escapetool allows remote code execution

2024-04-1020:46:19

CWE-95

GitHub_M

github.com

xwiki

remote code execution

vulnerability

html escaping

patching

security fix

syntax injection

10 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

10.5%

JSON

XWiki Platform is a generic wiki platform. Starting in version 3.0.1 and prior to versions 4.10.19, 15.5.4, and 15.10-rc-1, the HTML escaping of escaping tool that is used in XWiki doesn’t escape {, which, when used in certain places, allows XWiki syntax injection and thereby remote code execution. The vulnerability has been fixed in XWiki 14.10.19, 15.5.5, and 15.9 RC1. Apart from upgrading, there is no generic workaround. However, replacing $escapetool.html by $escapetool.xml in XWiki documents fixes the vulnerability. In a standard XWiki installation, the maintainers are only aware of the document Panels.PanelLayoutUpdate that exposes this vulnerability, patching this document is thus a workaround. Any extension could expose this vulnerability and might thus require patching, too.

CNA Affected

[
  {
    "vendor": "xwiki",
    "product": "xwiki-commons",
    "versions": [
      {
        "version": ">= 3.0.1, < 14.10.19",
        "status": "affected"
      },
      {
        "version": ">= 15.0-rc-1, < 15.5.4",
        "status": "affected"
      },
      {
        "version": ">= 15.6-rc-1, < 15.9-rc-1",
        "status": "affected"
      }
    ]
  }
]